She's been studying English for two years, _______?

A. does she B. doesn't she C. has she D. hasn't she

Something is wrong with Jane today, _______?

A. does she B. isn't it C. is she D. isn't she      

They tried to win but their efforts are ......

A. success B. successful C. successfully D. unsuccessful

You shouldn't ........ others if you also have a lot of mistakes.

A. critic B. critical C. criticize D. critically

He draws cartoons for a ........ magazine.

A. humour B. humourous C. human D. humourously

His son's ....... has not improved much.

A. behave B. behaviour C. behavourist D. behavourism

Everyone has a number of ........, but no one has many true friends.

A. acquaint B. acquaintances C. acquainting D. acquainters

Why don't you call the ........ if the lights don't work?

A. electricity B. electric C. electrician D. electrics

The cost of the ..... must be paid by the buyer.

A. carry B. carrying C. carried D. carriage

The earthquake caused terrible .......

A. destroying B. destroyed C. destruction D. destroys