He met his previous teacher ________ at abroad

Why is online shopping getting more popular —I think it _________ save a lot of time.

Mr. Simmons __________ medium build, and he has yellow hair.

The president hopes that the people will be better off when he quits than when he_______.

It is known to us that it was suchgreat efforts _____________ all the Chinese athletes had made _________ helpedthem get 51 gold medals in the 2008 Beijing Olympic Games.