—Is he coming? —I'm not sure．He may be late or he may not come at all．A. at presentB. at

问题补充：

—Is he coming?

—Im not sure．He may be late or,, he may not come at all．

A. at present

B. at least

C. worse still

D. for a while

答案：

A. at present

B. at least

(答案→)C. worse still

D. for a while

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