Today, computers are really helpful. They ____ everywhere.

A. use                          B. are used                          C. used                 D. were used

 I ____ Mr. Smith since he moved to Shanghai.

A. didn’t hear from                                    B. don’t hear from

C. won’t hear from                                          D. haven’t heard from

—May I speak to the headmaster?

—He ____ a meeting now. Can I take a message?

A. is having           B. had                                 C. has                          D. will have

—Where were you last Saturday?

—I ____ in the Capital Museum.

A. am                   B. will be                            C. was                         D. have been

Let’s ____ for a walk, shall we?

A. to go                B. going                       C. go                           D. gone

The task____ in an hour. Then we can go home and have a good rest.

A. was finished      B. will be finished C. has been finished D. can't be finished

--Let's discuss the plan, shall we?

--Not now. I_____ to an interview.

A. go　　 B. went　 C. am going　 D. was going

To protect the environment, supermarket don’t _____ free plastic bags to shoppers.

A.take B. show C. provide D. carry

 If Bob ______ away from the junk food, he will be in good health

   A. stay              B. will stay            C. stays

 In order to make our hometown more beautiful, trees _______ around the city every year.

   A. plant             B. are planted          C. will plant