题目内容
C) 根据句子意思,用括号中所给动词的适当形式填空。
1.There are two policemen__________ (guard) at the gate of the building.
2.—Is your father a doctor?
—Yes, he is. He__________ (work) in the Children’s Hospital.
3.—I called you at 7 yesterday evening, but you were not at home.
—I__________ (have) dinner out with my friends at that time.
4.—Is this jacket yours, Linda?
—No. I think it__________ (belong) to Mary.
5.So far, Mr Brown and his wife__________ (teach) at our school for ten years.
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