[ Grammar ]
The new marketing strategy, developed over six months, has proven to be ____ effective than previous approaches.
A. most
B. much
C. more
D. as

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Tenses › ViewWe _______________ to Australia yet. (not,be)
A. have been
B. haven’t be
C. haven’t been
D. been
Punctuations › View
In English, what is the process of making the words shorter? (do not = don’t)
A. contraction
B. construction
C. contractor
D. contracting