题目内容：

 

1.Why did you keep ________(沉默) at the meeting? We need your suggestions!

2.Kangkang’s father is going to Shanghai on _________. (出差)

3.The trees have a great _______ (影响) on the climate.

4. He has ________ (成功)in winning the first prize in the game recently.

5. This is my personal ________（经历）. What about yours?

6.There is no doubt that Diaoyu Island _________(属于)to China.

7.Thank you for ________(邀请) me to go on holiday with you.