You may search on the Internet for professors and their courses about the university ________ you may study for four years.

She often plans _____ something to help others.

The weather in London is so changeable that peoplealways take their umbrellas with them ____ rain．

ally, no supper is the best way to loseweight–________ As a matter of fact, it does harm to yourhealth

He didn’t feel a bit nervous when _____.—No. He’d had a lot of time _____ for it after all.