(2013·安徽卷)From space, the earth looks blue. This is about seventy-one percent of its surface is covered by water.
In my opinion , Tianjin is not as expensive in price as Beijing but Tianjin is in traffic.
The employees feel so excited ! At this time tomorrow morning they to Sanya, one of the most attractive cities in China.
In order to go to a key university, I must______my study from now on.
The English teacherher students how to improve their comprehension skill since last week.
---- Sorry, I have to ______ now. It’s time for class. ---- OK, I’ll call back later.