MAGOOSH Official Explanation:
(A) This question is an example of how the GMAT will sometimes choose an OA that is less than ideal. (A) is an example of such an imperfect sentence. Typically, a comma doesn’t follow “that”. Here it is okay because we are reversing the clause, “we need to converse with a native speaker to speak a foreign language”, becomes “to speak a foreign language, we need to converse with a native speaker”.
(B) The phrase beginning with “with” should logically
...






