问题描述：
what happens ____ you call him?A what B how C when D which
2.i___that question for a long time,but i can't answer it.
A think up B thought up C think about D thought about
3.____playing with toy boat,anna.we can't do it here.
A stop B to stop C stopping D Be stopping
2.i___that question for a long time,but i can't answer it.
A think up B thought up C think about D thought about
3.____playing with toy boat,anna.we can't do it here.
A stop B to stop C stopping D Be stopping
问题解答：
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