Question 19: I didn’t know                      my answer was right or wrong.

A. as if                          B. whether                    C. unless                       D. that

Question 18: I was doing my homework              the light went out.

A. after                          B. before                       C. while                        D. when

Question 17: Let’s begin our discussion now,             ?

A. shall we                    B. will we                     C. don’t we                   D. won’t we

Question 16: I will stand here and wait for you              you come back.

A. because                    B. thought                     C. so                             D. until

Question 15: It          me only five minutes to get to school

A. cost                           B. took                          C. brought                     D. spent

Question 14: The last person              the room must turn off the lights.

A. to leave                    B. who leave                 C. That leave                D. all are correct

Question 13: It is imperative that your face book password                       confidential.

A. need keeping            B. need to keep             C. needs to be kept       D. needed keeping

Question 12: Would you mind                  me a favor and posting this letter for me?

A. making                     B. doing                        C. getting                      D. giving

Question 11: Many species of plants and animals are in                       of extinction.

A. dangerous                B. endangered               C. danger                      D. dangerously

Question 10: Last week, our class went to Ha Long Bay for a picnic,                     made us very happy then.

A. which                       B. that                           C. it                               D. of which