根据句意，用所给单词的适当形式填空。
1．It gives us much________（please）to welcome our new teacher．
2．We are looking forward to ________ （visit）Shanghai World Expo．
3．Thanks for your________ （invite）．I'll be there on time．
4．This was one of the worst________ （nature）disasters in the history of the United States．
5．Students at school shouldn’t get their ears________ （pierce）．
根据所给汉语将下列句子补充完整（每空一词）。
1．他在这个诊所里当了三年医生了。
He has________ ________ ________ ________ in the clinic for three years．
2．体育迷们有很多机会去观看激动人心的比赛。
Sports fans have________ ________ chances________ ________ exciting competitions．
3．我不知道他是否故意把这本书落在这里。
I don’t know________ he ________ the book here________ ________．
4．你同意他村定的计划吗?
Do you ________ to the plan that he has________ ________ ________?
5．到会议结束时他还没有露面。
________ the time the meeting was________，he hadn’t________．
根据下面提供的对话情景，从下列7个选项中选择正确答案，使对话连贯、完整。其中有两项是多余的。
A：Today we are going to talk about a great invention．It looks like a human being． 1
B：It’s a robot． 2
A：Of course not．The first robot was invented in 1921．
B： 3
A：Sure．They can take the place of humans to do some boring work．They can also do a lot of dangerous work instead of humans．
B： 4
A：No．Robots can do a lot of work instead of people in many ways，but people wouldn’t be replaced by robots． 5
B：We get it．
A．Is that clear?
B．Can it do some washing?
C．Why do you think it is useful?
D．It appeared several centuries ago，didn’t it?
E．Will robots be the same as people?
F．What is it?
G．Could you please tell me more about robots?
Why are you ______ a skirt? It's not suitable for this cold weather.
A．wearing B．putting on C．buying D．selling
--I'd like to post a letter. Could you tell me how to get to the ______, Spotty?
--Sure. Turn to the left, go straight and you'll find one.
A．drugstore B．public restroom C．Newtown Museum D．post office
Can you wake the person ______ is pretending to be asleep?
A．whom B．who C．which D．whose
By the time I was three, I ______ learning English. I've been learning it for fifteen years.
A．had finished B．had stopped C．had started D．had held on to
--Andy, where is your sister?
--She ______ university. She won't return until July 15.
A．has gone to B．has been to C．went to D．goes to
David ______ a letter to his friend last night. When he got up this morning he continued writing it.
A．wrote B．read C．was reading D．was writing