[ Progessive Tenses ]
They had been using their cellphone all night.
The correct tense for this sentence is__
A. past progessive
B. past perfect
C. past perfect progressive
D. past tense
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Modals and Responsibilities › ViewJohn is ___ organizing the event.
A. must
B. need to
C. responsible for
D. ought to
Grammar › View
Water—— at 100 degrees Celsius.
A. is boil
B. boil
C. doesn’t boil
D. boils