— What _____to the little baby a moment_爱下问搜题

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问题选择题

— What _____ to the little baby a moment ago?

— He fell off the bed. [ ]

A. happens

B. happened

C. was happened

D. is happening

答案

答案：B

选择题

Some policemen were sent there to ________ the villagers _________ down the trees.

A．keep; cutting

B．prevent; cutting

C．prevent; to cut

D．stop; to cut

问答题

心搏骤停的原因有哪些？