【题目】Mr. Li （代表）our community to deliver a speech yesterday.

【题目】What we need are new (方法) to solving the problem.

【题目】No matter what happens，be sure you always do you think is your duty.

【题目】听下面一段较长对话，回答以下小题。

【题目】Although she didn't mention any names, everyone knew who she was (提及).

【题目】Yesterday I found a book in the bookstore (碰巧)which was intended for bird lovers.

【题目】—Why did you go back to the library?

【题目】It is not so much the language ________ the cultural background ______ makes the film difficult to understand.

【题目】The patients were (观察)over a period of several months.

【题目】As a new diplomat, he often thinks of ____ he can react more appropriately on such occasion.