Mary said that once ________ him you would like him and make friends with him.

There was _____ time ______ Irap was one ofthe strongest countries in the world.

rage of 130000 Chinese _________ abroad for studies every year overthe past few years, boosting exchanges in the educational fields

We have to stay at home ________ the heavy rain.

The first thing I’m going to do is to send an e-mail to Peter.