1. I had barely come in _______ the telephone rang.
A. when B. after C. than D. while
2. _______ we know, there are 107 elements found in nature.
A. As far B. So far as C. Just as D. So long as
3. The more we looked at the picture, _______.
A. the less we liked it B. we like it less
C. better we liked it D. it liked better
4. Old _______ he is, he still studies English every day.
A. as B. although C. if D. like
5. Mr. Wang was _______ for an hour before dinner.
A. very tired, so he laid down B. so tired as to lay down
C. so tired that he lied down D. so tired that he lay down
6. A heavy box on the floor will stay in place _______ it is pushed or pulled.
A. if B. when C. unless D. or else
7. “When do you wish to visit Paris?”
“_______ I am settled, I ll go there.”
A. So long B. As C. Once D. While
8.Don t forget to register this week _______ you can vote in the election.
A. so B. so that C. such as D. such
9.I don t know whether it will rain or not, but _______, I shall stay home.
A. if it will B. if it does C. if it did D. if it shall
10. The cookies that you sent over were _______ that I ate them all.
A. very good B. too good C. so good D. good
11. _______ we continue to work hard, we can finish the task ahead of schedule.
A. As soon as B. As far as C. So long as D. So far as
12. We ll visit Europe next year _______ we have enough money.
A. lest B. until C. unless D. provided
13. Although he knewlittle about the large amountof workdone in the field, hesucceeded
_______ other more well-informed experimenters failed.
A. which B. that C. what D. where
14. _______ much is known about what occurs during sleep, the precise function of sleep and its
different stages remains largely in the realm of assumption.
A. Because B. Since C. As D. While
15. We hadn t met for 20 years, but I recognized her _______ I saw her.
A. for the moment B. the moment when C. at the moment when D. the moment
16. _______, there was no mistake that she was displeased.
A. As her words were gently spoken B. Spoken as her words were gently
C. Were as her words gently spoken D. Gently as her words were spoken
17. This old school is still having _______ of students _______ it had a hundred years ago when
it was first founded.
A. the same amount; as B. the same number; as
C. equal number; like D. the same number; when
18. _______ difficulties we may come across, we ll help one another to overcome them.
A. Wherever B. Whatever C. However D. Whenever