Before                   C. When                    D. As
16. Tom make up his mind to get a seat for the football match ________ it means standing in a queue all night.
A. as if                    B. as though               C. even if                   D. whatever
17. The roof fell ________ he had time to dash into the house to save his baby.
A. as                       B. after                      C. until                       D. before
18. Doing your homework is a sure way to improve your test scores, and this is especially true ________ it comes to classroom tests.
A. as                       B. since                     C. when                      D. after
19. I have been keeping that photo ________ I can see it every day, as it always reminds me of my college days.
A. which                 B. where                    C. whether                  D. when
20. You may borrow this book ­­­ ________ you promise to give it back.
A. in case                B. so long as               C. as if                       D. even if
21. ________ the man grew older, he lost interest in everything except gardening.
A. With                   B. Since                      C. While                     D. As
22. ________ you understand this rule, you’ll have no further difficulty.
A. Once                  B. Unless                     C. As                        D. Until
23. I had no sooner got back to the kitchen ________ the door-bell rang loud enough to wake the dead.
A. when                  B. than                        C. as                        D. while
24. I criticized him, you know, not ________ I hate him but ________ I love him.
A. because; because B. because; for             C. for; because         D. for; for
25. ________ he studies hard, he will never pass the examination.
A. If                        B. Unless                    C. Even if                 D. Even though
26. She worked hard ________ everything would be ready by the time he came back.
A. since                   B. so that                    C. as if                     D. unless
27. He waited ________ the volcano became quiet and he was able to return two days later.
A. when                   B. before                    C. as                        D. until
28. — May I go and play football with Dick this afternoon, Dad?
— No, you can’t go out ________ your work is being done.
A. before                  B. until                       C. as                        D. after
29. A warning news report from Qatar announces that a group of Islam will continue to kill Americans wherever they are ________ they leave the Arab world forever.
A. even though          B. in case                   C.