His mother was badly ill. The doctor said that she had to ______at once.

A. operate B. be operated C. operate on D. be operated on

Unluckily, a car accident _____ on this road last week.

A. has happened B. was happened C. was happening D. happened

Tom by his classmates because he made a careless mistake.

A. laughed at B. was laughed at

C. laughed D. was laughed

This kind of iPad ______ in our computer shop. It ______ very well.

A.is sold; sells B.sells; is sold

C.sells; sells D.is sold; is sold

David’s dream in China is to go to the west and ___ a kindergarten (幼儿园) there.

A. clean up B. look up C. give up D. set up

These doctors and nurses tried their best, but they did not _____ the poor patient.

A. cure B. treat C. improve D. help

Jack can’t play ____ piano, but he can play _____ football.

A. the, the B. the, / C. a, a D. a, the

The robot can help me sweep the floor. ________ smart invention it is!

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

Jennifer_____a reporter,but she_______her job last month

A. use to be;change B. used to be;changed

C. is used to be;has changed D. used to be;had changed

This is the______moment I_______in the past twelve year

A. most;have had B. best;had C. most exciting;have bad D. happiest;bad