Before scientists learned how to make a synthetic growth hormone, removing it painstakingly in small amounts from the pituitary glands of human cadevers.
A)
B) scientists had learned about making a synthetic growth hormone, they had to remove it painstakingly.
C) scientists learned how to synthesize the growth hormone, it had to be painstakingly removed
D) learning how to make a sythetic growth hormone, scientists had to remove it painstakingly
E) learning how to synthesize the growth hormone, it had to be painstakingly removed by scientists
Good day all
my question is the following:
the OA is C but according to my understanding we have two related clauses, the growth hormone is the object of the first clause, and it is a subject pronoun that refer to growth hormone in the second clause. i thought that objects should be referred to in the second clause by object pronouns?
please correct me if i'm missing something.
thanks a lot in advance
A)
B) scientists had learned about making a synthetic growth hormone, they had to remove it painstakingly.
C) scientists learned how to synthesize the growth hormone, it had to be painstakingly removed
D) learning how to make a sythetic growth hormone, scientists had to remove it painstakingly
E) learning how to synthesize the growth hormone, it had to be painstakingly removed by scientists
Good day all
my question is the following:
the OA is C but according to my understanding we have two related clauses, the growth hormone is the object of the first clause, and it is a subject pronoun that refer to growth hormone in the second clause. i thought that objects should be referred to in the second clause by object pronouns?
please correct me if i'm missing something.
thanks a lot in advance
