问题

Tom is never late for work. Why is he absent today? —Something_____ to him.[ ]
A: must happen
B: should have happened
C: could have happened
D: must have happened
B: should have happened
C: could have happened
D: must have happened
正确答案是:
同类题型
The toys are ___________ the animals , which are attractive to the children .
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Let’s go to the cinema by taxi.-Don’t worry, we have __________ time.
Are you ___ American or English —English .we are working in Wuhan.