1、【题目】A beam of light will not bend round corners unless ________ (make) to do so with the help of a reflecting device

答案：

made

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

答案：

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】I shall never forget ________ (meet) the late Premier Zhou during his inspection of our factory.

答案：

meeting

解析：

暂无解析