______ to explain the lesson ______ the classroom. A. Hardly the teacher had started / when did the principal enter B. Had hardly the teacher started / the principal entered C. Hardly had

______ to explain the lesson ______ the classroom.

A. Hardly the teacher had started / when did the principal enter
B. Had hardly the teacher started / the principal entered
C. Hardly had the teacher started / when the principal entered
D. The teacher hardly had started / when entered the principal

Trả lời

Chọn đáp án C

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