English _____one of _____subjects in the middle school.

A. are ，  important              B. is， the most  important

C. is，  more important           D. are， much  important

David has become a ________ young writer.

A. succeed    B. success

C. successful  D. Successfully

Jack, your bedroom is in a terrible mess. Please    .

A. tidy it up  B. take it off

C. make it up   D. put it away

Smile to the world,       the world will smile back to you.

A. nor  B. but  C. or  D. And

—How long will the summer English courses    ? —For six weeks.

A. last   B. open         C. begin   D. Start

For the present, I can’t afford ________ a car.

A. to buy             B. buy           C. buying             D. for buying

I have been skating _______ nine o’clock.

A. for           B. since           C. at              D. From

_____ have you been swimming?  For five years.

A. How many times B. How long

C. How often       D. How much

I hope _______more robots to help people in the future.

A. there were        B. there will have

C. there will be     D. there is

---Mary, how much did you ______ the new watch?  ---300 yuan.

A. wait for      B. look for

C. pay for       D. care for