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

答案：

解析：

1、【题目】He refused to tell us whether he ________ (undertake) the job.

答案：

would undertake

解析：

暂无解析

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】The director recommended that she ________ (study) more English before going abroad.

答案：

study

解析：

暂无解析

1、【题目】Abeamoflightwillnotbendroundcornersunless________(make)todosowiththehelpofareflectingdevice

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解析：

1、【题目】Matteristhename________(give)toeverythingwhichhasweightandoccupiesspace.

答案：

解析：

1、【题目】I wonder if he could get it ________ (do) before tomorrow.

答案：

done

解析：

暂无解析

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】heteachertoldthemsincelight________(travel)fasterthansound,lightning________(appear)togobeforethunder.

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解析：

1、【题目】Thosewho’dliketovisittheexhibition________(sign)yournameshere.

答案：

解析：

1、【题目】Herefusedtotelluswhetherhe________(undertake)thejob.

答案：

解析：

1、【题目】Night________(fall),wehurriedhome.

答案：

解析：

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】________(fail)severaltimes,theyneedsomeencouragement.

答案：

解析：