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operate to operate operating operated
is an old man are both old men is an old man and a young man were two Chinese
B.C.D.四个选项中选出一个最佳答案, 将其标号填入题前括号内。 —Where is Tom’s and Peter’s homework? —The two students_____ ill yesterday, and they didn’t come to school. A. are all were all are both were both
Being ill She was seriously ill She being ill Having been ill
we found that the two men emerged the two men had emerged here the two men emerged the two men emerged
breath breathe to breathe breathing
ill sick illness sickness
Only were five men seriously hurt Only did five men were seriously hurt Only five men were seriously hurt Only five men were seriously hurted
is an old man, is are both old men, are is an old man and a young man, is are two Chinese, are