How did the Chinese doctors get to Haiti (海地) to help the people there? — They got there ______ plane. [ ]

____the book if you are free, and you will learn a lot about how to study English .

I’d rather _________half an hour to work than drive a car.

There are _______ visitors to the wetland park, and the number is becoming _______ now.

The second Sunday of May isMother’s Day. It’sspecial day for children to showtheir love to their mothers.