Question

【题目】This afternoon the classroom had a power cut while they _______ a physics lesson.

A. are havingB. will haveC. were havingD. have had

Answer 1

【答案】C

【解析】

句意“今天下午当他们正在上物理课时，教室停电了”。A.现在进行时；B.一般将来时；C.过去进行时；D.现在完成时。根据had可知，用过去时，且根据句意可知，表示“他们正在上物理课”，故选C。