03 : 00
Part V
1. Magnum Plus cameras ------- very popular right now because they are so easy to use.
(A) became
(B) are becoming
(C) to become
(D) becomes
2. Because of ------- extremely focused customer bases, small business owners can often respond quickly to new economic trends.
(A) they
(B) their
(C) theirs
(D) them
3. Officials attribute the ------- in service to a software upgrade that makes the system run faster.
(A) improvement
(B) exchange
(C) relief
(D) lift