【題目】The professor, together with some students, ______________ the lecture hall at that time.

A. were enteringB. are enteringC. was enteringD. is entering

【答案】C

【解析】

句意：教授和一些學(xué)生當(dāng)時(shí)正在進(jìn)入講堂。at that time“當(dāng)時(shí)；在那時(shí)”的意思，用在句子中是過去進(jìn)行時(shí)。排除B/D。又因?yàn)楸揪湓挼闹髡Z是The professor為單數(shù)，而together with some students只做伴隨用的。所以用was entering。故選C。

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