[ Grammar ]
an -ing verb used as a verb must have a ______
A. Gerund
B. Participle
C. Helping Verb
D. Noun

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I (lay/laid) awake all last night worrying about final exams.
A. lay
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Verbs & Adverbs › View
Choose the correct correct option to complete each sentence:
You _____ answer my question yesterday.
A. aren’t
B. didn’t
C. don’t
D. doesn’t
