单项选择题

He didn't know（）or go home.

A. to wait
B. if that he should wait
C. if to wait
D. whether to wait

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单项选择题

Yesterday I got a copy of BBC, Modern English at a bookshop; after I read it, I went on（）the New Concept English.

A. to read
B. reading
C. as to read
D. in reading

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