GMATGuruNY wrote:

vietmoi999 wrote:I have the same pen as your pen

is correct pattern. after "the same as" we can use a noun or a clause.

so, D is not incorrect in this point.

pls, explain , why D is wrong

Generally, as serves to compare two VERBS.
Sometimes the second verb is omitted, but its presence is still implied.

In your post above, the sentence in red is incorrect.
It conveys the following meaning:
I have the same pen as your pen [has].
The verb in brackets is omitted, but its presence is implied.
The resulting meaning is nonsensical, implying that YOUR PEN HAS the same pen as I HAVE.

Correct: I have the same pen as YOU.
Conveyed meaning: I have the same pen as you [have].

Another case:

Correct: John attends the same school as Mary.
Conveyed meaning: John attends the same school as Mary [attends].
The verb in brackets is omitted, but its presence is implied.

Incorrect: John attends the same school as Mary's.
Conveyed meaning: John attends the same school as Mary's [school attends].
The words in brackets are omitted, but their presence is implied.
The resulting meaning is nonsensical, implying that MARY'S SCHOOL ATTENDS the same school as JOHN ATTENDS.

Answer choice D in the SC above:
The Sun has the same apparent size in the sky as the Moon's.
Conveyed meaning:
The Sun has the same apparent size in the sky as the Moon's [size has].
The words in brackets are omitted, but their presence is implied.
The resulting meaning is nonsensical, implying that THE MOON'S SIZE HAS the same apparent size as THE SUN HAS.

GMATGuruNY wrote:

vk_vinayak wrote:Because of the Sun, which is 400 times larger than the Moon, but also 400 times farther away from Earth, so both the Sun and the Moon have the same apparent size in the sky.

A: Because of the Sun, which is 400 times larger than the Moon, but also 400 times farther away from Earth, so both the Sun and the Moon have the same apparent size in the sky.

B. The Sun, which is 400 times larger than the Moon, is also 400 times farther away from Earth, so the Sun and the Moon have the same apparent size in the sky.

C. The Sun and the Moon have the same apparent size in the sky because the Sun, which is 400 times larger than the Moon, and also 400 times farther away from Earth.

D. Four hundred times larger than the Moon and 400 times farther away from Earth, the Sun has the same apparent size in the sky as the Moon's.

E. Four hundred times larger than the Moon and also 400 times farther away from Earth, so the Sun in the sky has the same apparent size as the Moon.


Please explain your reasoning for each options. OA later.

In A and E, so is not preceded by an independent clause. When so serves as a coordinating conjunction -- as it does here -- it must connect two independent clauses, each with its own subject and verb. Eliminate A and E.

In C, the subject that follows because -- THE SUN -- lacks a verb. Because the sun DOES WHAT EXACTLY? Eliminate C.

In D, the Moon's seems to be standing in for the Moon's SIZE, implying the following comparison:
The Sun has the same apparent size as THE MOON'S SIZE HAS.
We can't say that THE MOON'S SIZE has a SIZE. Eliminate D.

The correct answer is B.

GMATGuruNY wrote:

alanforde800Maximus wrote:"@GMATGuruNY"
Hello Mitch,

Isn't the usage of "and also" redundant in C?

X and also Y is a valid construction.
In this construction, also is used for emphasis: it serves to indicate that Y is somehow notable.
An OA in GMATPrep:
The organic food industry has organized a successful grassroots campaign -- using websites, public meetings, and also mass mailings.
Here, also serves to indicate that the use of mass mailings is somehow notable.
In short:
and also is NOT considered redundant.