题目内容
用括号内所给词的适当形式填空
(每空不限一词)。I was doing some shopping when the building ________(start)to shake hard.
答案:started
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题目内容
用括号内所给词的适当形式填空
(每空不限一词)。I was doing some shopping when the building ________(start)to shake hard.