题目内容
28. Be careful! The slightest spark(火花)could ______ the fireworks.
A.set about | B.set off | C.set out | D.set up |
B
解析
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题目内容
28. Be careful! The slightest spark(火花)could ______ the fireworks.
A.set about | B.set off | C.set out | D.set up |
B
解析