[ Verb Tenses ]
By next year, they ______ a new system to deal with customer complaints more efficiently.
A. implement
B. will be implementing
C. will have implemented
D. are implementing
Select your answer:

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as...as, comparatives, superlativesPast and Future TensesDemonstrative PronounsConditionals and Modal VerbsCan, Could, May, MightFuture - be going toVocabulary and Modal VerbsGrammar: so and suchGerund and To InfinitiveConjunctions & InterjectionsOther quiz:
Lexico and Grammar › ViewI went shopping on the last day of the sales, _____ most of the bargains had disappeared.
A. in which event
B. in which case
C. during which
D. by which time
Tenses › View
My friend _______ a new book yesterday.
A. buy
B. buys
C. bought
D. is buying
