[ Grammar ]
Were you chatting online with your friends……..your teacher was teaching?
A. when
B. while
Select your answer:

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Must and Might Modals › ViewWhat is the function of “might have” in the sentence: “He might have called while you were out”?
A. Expressing certainty
B. Expressing obligation
C. Expressing possibility
D. Expressing permission
Grammar and Vocabulary › View
We usually go ________ on Fridays.
A. shopping
B. dinner
C. bed
