1、【题目】Abeamoflightwillnotbendroundcornersunless________(make)todosowiththehelpofareflectingdevice

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1、【题目】Ishallneverforget________(meet)thelatePremierZhouduringhisinspectionofourfactory.

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1、【题目】Herefusedtotelluswhetherhe________(undertake)thejob.

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1、【题目】Matteristhename________(give)toeverythingwhichhasweightandoccupiesspace.

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1、【题目】________(catch)intherain,hewaswettotheskin.

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1、【题目】The floor does not look so bad when ________ (sweep) clean. 

答案：

swept

解析：

暂无解析

1、【题目】he teacher told them since light ________ (travel) faster than sound,lightning ________ (appear) to go before thunder.

答案：

travels, appears

解析：

暂无解析

1、【题目】Thefloordoesnotlooksobadwhen________(sweep)clean.

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1、【题目】He fell asleep immediately last night; he must ________ (be) very tired.

答案：

have been

解析：

暂无解析

1、【题目】“Haveyoumovedintothenewflat?”“Notyet.Therooms________(paint).”

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1、【题目】Those who’d like to visit the exhibition ________ (sign) your names here.

答案：

sign

解析：

暂无解析

1、【题目】Heaskedmewhethermybrother________(fly)toBeijing.

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1、【题目】How long ________ they ________ (dig) the ditch?

答案：

have … been digging

解析：

暂无解析