1、【题目】Thosewho’dliketovisittheexhibition________(sign)yournameshere.
答案：
解析：
1、【题目】A great number of small power stations ________ (set up) in their county since liberation.
答案：
have been set up
解析：
暂无解析
1、【题目】Howlong________they________(dig)theditch?
答案：
解析：
1、【题目】How long ________ they ________ (dig) the ditch?
答案：
have … been digging
解析：
暂无解析
1、【题目】Matter is the name ________ (give) to everything which has weight and occupies space.
答案：
given
解析：
暂无解析
1、【题目】I shall never forget ________ (meet) the late Premier Zhou during his inspection of our factory.
答案：
meeting
解析：
暂无解析
1、【题目】Somemoleculesarelargeenough________(see)undertheelectronicmicroscope.
答案：
解析：
1、【题目】Thefloordoesnotlooksobadwhen________(sweep)clean.
答案：
解析：
1、【题目】Night ________ (fall), we hurried home.
答案：
falling
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】He fell asleep immediately last night; he must ________ (be) very tired.
答案：
have been
解析：
暂无解析
1、【题目】heteachertoldthemsincelight________(travel)fasterthansound,lightning________(appear)togobeforethunder.
答案：
解析：
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