Complete the following passage with the words or phrases in the box. Each can only be used once (将下列单词或词组填入空格。每空格限填一词，每词只能填一次)

Fred telephoned his wife. “I’ve got two free tickets for the theatre tonight,” he told her. “Meet me   1. the office. We’ll have something to eat and then go on to the theatre.”

Fred’s wife was very pleased. They hadn’t been to the theatre for a long time. She met her husband as he told her. They had dinner and got to the theatre 2. in time.

At the entrance Fred   3. his wallet to get the tickets. “It’s very strange,” he said. “They aren’t here!” “Try your pockets,” said his wife. But the tickets weren’t there, either.

Then Fred looked very   4. . “What’s the matter?” asked his wife. “Well,” Fred said, “I remember what I did with my tickets. I put them in my bag. But because I wasn’t going home, I left it in the office!”

— Could you help me put up the painting on the wall?

— ______

A. No problem.        B. I hope so.

C. That’s all right. D. That’s a good idea.

— My aunt will take me to Europe for vacation next month.

— ______

A. You can do it!    B. I’ll be glad to come.

C. Have a good time!  D. I’m glad you like it.

—______ do you study for a test?

— I study by working with my classmates.

A. Where B. Why C. What D. How

______ useful robot! It can help with the housework like a human servant.

A. What an B. What a C. What D. How

— What would you like to have for your birthday?

— Either noodles or bread ______ OK. I don’t mind.

A. am B. is C. are D. be

You will achieve nothing ______ you work hard in a proper way.

A. because B. if C. when D. unless

Paper cutting looks very easy ______ it may be difficult to do.

A. or B. so C. but D. for

The girls ______ how to dance a month ago and now they can dance well.

A. were taught B. will be taught

C. are taught D. have been taught

Tom ______ an experiment when someone knocked at the door.

A. does B. did C. is doing D. was doing