Topics: Tenses Usage
The amount of waste generated annually _____ increasing every year.
A. is
B. are
C. was
D. were
Select your answer:
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Modals › ViewWhich modal verb should be used to express advice or recommendation?
A. should
B. can
C. could
D. must
Tenses › View
He has been selling motorbikes ________.
A. ten years ago
B. since ten years
C. for ten years ago
D. for ten years