选词填空（共10小题，每小题1分，满分10分）

Don’t be so __________! The bus will be here soon. 
He worked out the problem         yesterday. We are proud of him.
       in the coming exam, students are busy revising their lessons.
The children are not used to              . They may feel lonely.
China             WTO for 11 years.
In order to be healthier, you should                   .
The London Olympics                on 27^th, July, 2012.
The little girl looks forward to                from her brother in China.
Look! There is a nice wallet               on the grass.
Please come, Peter. We are planning               .