[ Mixed Tenses ]
While I _______ at the bus stop, three buses went by in the opposite direction.
A. was waiting
B. waited
C. had waited

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Ving - To V › ViewLet sb +
A. V
B. Ving
C. To Ving
D. to V
Dependent Clauses › View
Read the following sentence:
Though it was not her job, Abby took out the trash.
Choose which part of the sentence is the DEPENDENT clause.
A. Though it was not her job,
B. Abby took out the trash.
Reported Speech and Tenses › ViewChoose Modal Verb indicating possibility: It ____ rain tomorrow.
A. may
B. mustn’t
C. shouldn’t
Modal Verbs › View
You ____ call a doctor if the symptoms persist.
A. should
B. can
C. may