题目内容：

So hard ( ) that all of us praised him A.does he work B.he worked C.he works D.did he work

优质解答

D.did he work
根据praised ,动词应该用过去时
so放在句首,后半句要倒装.
整句的翻译是：因为他很勤快,所以我们都表扬他.
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