Need Help: Uranium SC

[tonebeeze]

Source: SC 1000 & Paper ETS Tests

This question really threw me for a loop. I was unable to spot the main errors in this sentence. I guess I got thrown off track by the phrase "this process," which had me searching for answer choices whose main subjects in the intro subordinate clause most resembled a "process." In (e) "recovering uranium" sounded like a process, so I selected (e). Clearly, I my aim was way off the target. I would appreciate it someone could walk me through the underlying grammar of this sentence, so that I can beat questions such as these. Thanks!

It may someday be worthwhile to try to recover uranium from seawater, but at present this process is prohibitively expensive.

a. It may someday be worthwhile to try to recover uranium from seawater

b. Someday, it may be worthwhile to try and recover uranium from seawater

c. Trying to recover uranium out of seawater may someday be worthwhile

d. To try for the recovery of uranium out of the seawater may someday be worthwhile

e. Recovering uranium from seawater may be worthwhile to try to do someday

[gmat_perfect]

Source: SC 1000 & Paper ETS Tests

This question really threw me for a loop. I was unable to spot the main errors in this sentence. I guess I got thrown off track by the phrase "this process," which had me searching for answer choices whose main subjects in the intro subordinate clause most resembled a "process." In (e) "recovering uranium" sounded like a process, so I selected (e). Clearly, I my aim was way off the target. I would appreciate it someone could walk me through the underlying grammar of this sentence, so that I can beat questions such as these. Thanks!

It may someday be worthwhile to try to recover uranium from seawater, but at present this process is prohibitively expensive.

a. It may someday be worthwhile to try to recover uranium from seawater

b. Someday, it may be worthwhile to try and recover uranium from seawater

c. Trying to recover uranium out of seawater may someday be worthwhile

d. To try for the recovery of uranium out of the seawater may someday be worthwhile

e. Recovering uranium from seawater may be worthwhile to try to do someday

Try should be followed by "to + verb" in most of the cases.
--> Eliminate B an D.

Try to do someday---means someday will be done, so it changes the intended meaning of the sentence.
--> Eliminate E>

Trying to ......................, this porcess: Here it means that "trying is a process", which changes the meaning of the sentence. --> Eliminate C.

Answer: A.