—Whyisthatstrangemaninouroffice?—Idon’tknow.Maybehecame...

问题详情：

—Why is that strange man in our office?

—I don’t e he came in so ________ that we didn’t hear him while working.

kly   tly    ly    ly

【回答】

B

知识点：副词

题型：选择题