[ Grammar ]
David _______ (improve) his tablet with a faster processor.
A. improves
B. improving
C. improved
D. improve
Select your answer:
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Grammar › ViewBe quiet! The children _______ in the room.
A. sleeps
B. is sleeping
C. sleep
D. are sleeping
Modal Verbs › View
All candidates _____________________ send in their application forms by Friday.
A. Must
B. Mustn’t
C. Needn’t