Question 19: A new air-conditioner  __________ tomorrow.

   A. will be installed               B. will install          C. is installing                  D. is installed

Question 20: We should learn about keeping the environment_____________.

  A. unpolluted                      B. polluting                C. pollute                        D. polluted

Question 21: The boy _________father you met at the party last night is my cousin.

A. who                                               B. whom                  C. which                         D. whose

Question 22: If you ______ late, you wouldn’t finish your work.

A. come                                B. came                    C. will come                   D. coming

Question 23. She asked me if I           a laptop computer the following day.

  A. buy                                  B. will buy         C. bought                     D. would buy

Question 24: Jim found the new programme on TV very ______.

A. excited                              B. excitedly                C. excitingly                  D. exciting