Choose the best answer to complete the following sentences:

5. Linda              her homework now.

        A. is doing                      B. does                                 C. did                       D. doing

6. She                 camping last summer.

        A. went                           B. is going                            C. go                        D. goes

7. Alan               a letter to his new pen friend at the moment.

        A. writes                         B. is writing                         C. wrote                   D. writing

8. She always                 to school by bike.             

        A. went                           B. is going                            C. go                        D. goes

9. Lili              a letter to her new pen friend yesterday.

        A. write                         B. writing                             C. writes                      D. wrote

10. Alan should               because he has a fever.

        A. go to an engineer                                                    B. go to a farmer                  

       C. go to the doctor                                                       D. go swimming

11. Are you going              TV this evening?

            A. watch                    B. watching                           C. to watch                    D. watched

12. Linda        going to visit her friends next weekend.

        A. was                            B. is                                      C. ’s                                D. B&C