1. A majority of the international journalists surveyed view nuclear power stations as unsafe at present but that they will, or could, be made sufficiently safe in the future.
(A) that they will, or could,
(B) that they would, or could,
(C) they will be or could
(D) think that they will be or could（D）
(E) think the power stations would or could--------
2. According to his own account, Frederic-Auguste Bartholdi, the sculptor of the Statue of Liberty, modeled the face of the statue like his mother's and the body like his wife's.
(A) modeled the face of the statue like his mother's and the body like his wife's
(B) modeled the face of the statue after that of his mother and the body after that of his wife
(C) modeled the face of the statue like his mother and the body like his wife
(D) made the face of the statue after his mother and the body after his wife（B）
(E) made the face of the statue look like his mother and the body look like his wife
3. According to United States Air Force officials, a cannon shooting dead chickens at airplanes has proved helpful to demonstrate what kind of damage can result when jets fly into a flock of large birds.
(A) shooting dead chickens at airplanes has proved helpful to demonstrate
(B) shooting dead chickens at airplanes has proved itself helpful as a demonstration of
(C) shooting dead chickens at airplanes proves itself helpful as demonstrating
(D) that shoots dead chickens at airplanes proves itself helpful to demonstrate（E）
(E) that shoots dead chickens at airplanes has proved helpful in demonstrating
4. According to scientists at the University of California, the pattern of changes that have occurred in human DNA over the millennia indicate the possibility that everyone alive today might be descended from a single female ancestor who lived in Africa sometime between 140,000 and 280,000 years ago.
(A) indicate the possibility that everyone alive today might be descended from a single female ancestor who
(B) indicate that everyone alive today might possibly be a descendant of a single female ancestor who had
(C) may indicate that everyone alive today has descended from a single female ancestor who had
(D) indicates that everyone alive today may be a descendant of a single female ancestor who（D）
(E) indicates that everyone alive today might be a descendant from a single female ancestor who
what is the difference in the usage of may and might?
(A) that they will, or could,
(B) that they would, or could,
(C) they will be or could
(D) think that they will be or could（D）
(E) think the power stations would or could--------
2. According to his own account, Frederic-Auguste Bartholdi, the sculptor of the Statue of Liberty, modeled the face of the statue like his mother's and the body like his wife's.
(A) modeled the face of the statue like his mother's and the body like his wife's
(B) modeled the face of the statue after that of his mother and the body after that of his wife
(C) modeled the face of the statue like his mother and the body like his wife
(D) made the face of the statue after his mother and the body after his wife（B）
(E) made the face of the statue look like his mother and the body look like his wife
3. According to United States Air Force officials, a cannon shooting dead chickens at airplanes has proved helpful to demonstrate what kind of damage can result when jets fly into a flock of large birds.
(A) shooting dead chickens at airplanes has proved helpful to demonstrate
(B) shooting dead chickens at airplanes has proved itself helpful as a demonstration of
(C) shooting dead chickens at airplanes proves itself helpful as demonstrating
(D) that shoots dead chickens at airplanes proves itself helpful to demonstrate（E）
(E) that shoots dead chickens at airplanes has proved helpful in demonstrating
4. According to scientists at the University of California, the pattern of changes that have occurred in human DNA over the millennia indicate the possibility that everyone alive today might be descended from a single female ancestor who lived in Africa sometime between 140,000 and 280,000 years ago.
(A) indicate the possibility that everyone alive today might be descended from a single female ancestor who
(B) indicate that everyone alive today might possibly be a descendant of a single female ancestor who had
(C) may indicate that everyone alive today has descended from a single female ancestor who had
(D) indicates that everyone alive today may be a descendant of a single female ancestor who（D）
(E) indicates that everyone alive today might be a descendant from a single female ancestor who
what is the difference in the usage of may and might?
