18、Complete the dialogue with proper words or sentences.

（Mrs. White and Zhang Tao are talking on the playground.）

A——Zhang Tao, B——Mrs. White

A: Good afternoon, Mrs. White！I haven’t seen you for a long time.

B: Good afternoon, Zhang Tao! （1）________________________________?

A: Fine, thanks. And you?

B: I’m fine, too. School term is nearly over. （2）________________________________?

A: I’m going to take courses in a summer school.

B: （3）________________________________?

A: English and computer.

B: （4）________________________________?

A: Because English and computer are getting more and more important in our life.

B: （5）________________________________. I hope you will work hard at them.

A: Thank you. I’ll do my best.

17、—How many _______ are there in the kitchen?

—Only two.

A．bag of rice        B．bags of rice         C． bags of rices

16、He has been here _______ he left his hometown.

A． since              B．in           C． for

15、Peter, there is someone in the office          would like to speak with you.

A． who            B．which         C． whom 

14、—Which is more useful, listening or speaking?

—I think _______ of them are useful.

A． none          B．both            C．all

13、Alice, please be quiet! The others _______ hear clearly.

A． can’t           B．mustn’t              C．shouldn’t

12、_______ fine weather it is! Let’s go swimming.

A． What a               B．How         C． What

11、—Tree Planting Day is coming. Do you plant trees in spring?

—Yes, many trees _______ in our city every year.

A． are planting           B．are planted          C． were planted

10、—I have a headache and a cough. 

—_______ have you been like this?

A． How soon              B．How long               C． How often