I soon found that the work I was doing had already been done by someone else.________，I was wasting my time.

—Do you have anything planned for this afternoon?　 —Yes. I’m going to ________a famous NBA player.

You needn’t go to the railway station by taxi because it is within walking ________.It only takes five minutes to walk there.

At the meeting，Tom ________an idea about how we could get enough money to help those in trouble.

—How did she get infected?  —She _______ the viruses without any protection．

There was no lack_______ volunteers, but money．

She _______ the path as the trees around her became thicker．

Most parents think that computer games have a bad _______ on their children．

The program _______ five sections, each of which has its own characteristics．

I feel it is your husband who _______ for the spoiled child．

The natural beauty of Jiuzhaigou ________ millions of tourists from all over the world every year.

The teacher asked me to repeat his words and_____.

To make members of a team perform better, the trainer first of all has to know their ______ and weaknesses． 

The doctor tried to _______ him to give up smoking, but he wouldn’t listen.

The fireworks last year _______ the beauty of Changchun over Chinese New Year.

I can hardly _______ my first English teacher in the market last Saturday.

The protesters _______ the meeting by singing and shouting.

The man in black is _______ my lifeguard. He is also my close friend.

--Oh, Kate! Glad to see you again. It ____my pleasure to see you here.---Me, too.

Tim’s house in NY is much smaller than ours, but it's three times ______ expensive．