问题

－It was the headmaster, Tony. You______hello to him.－Sorry. I didn’t notice him.

A:must say
B:should say
C:must have said
D:should have said

正确答案是：

同类题型

The old man lives in a village __________,but he never feels ____________.

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_____, the worse I seem to feel.

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I don’t think Jim saw me ; he ______ into space