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

正确答案是：

同类题型

I didn’t go last month.

today!—Yes. Shall we have a picnic in the open air

Anyone who wants to ________ China’s gardens should goto Suzhou, whose gardens are the best examples in the country.

The shop ________ at 8:00 a.m. and it ________ for ten hours every day.