11. They need ______ students to help them.

A. twenty or so                                                  B. or so twenty

C. or twenty so                                                  D. twenty so

12. The bus ran into a ______ train.

A. passing                                                          B. pass

C. passed                                                           D. to pass

13. Don’t tell Lao Lin about it, ______ ?

A. will you                                                         B. won’t you

C. can’t you                                                       D. can you

14. The fire seems ______ out.

A. to be put                                                        B. to have been put

C. putting                                                           D. to put

15. You can read the book here ______ you keep quiet.

A. unless                                                            B. when

C. as long as                          &nb 91eXAm.orgsp;                           D. but

16. The initials UN ______ The United Nations.

A. stand by                                                        B. stand for

C. stand at                                                         D. stand with

17. He was interested in ______ I told him.

A. whoever                                                        B. however

C. whatever                                                       D. that

18. Would you like me ______ where the nearest supermarket is ?

A. to show you                                                   B. showing you

C. show you                                                      D. and show you

19. Ever since he was a boy, he ______ interested in math.

A. is                                                                  B. has been

C. was                                                               D. have been

20. Where there is a will, ______ is a way.

A. here                                                              B. there

C. where                                                            D. nowhere