41. Put the ___ of your tongue against your upper teeth when you produce the sound.
A. tip B. top C. peak D. pole
40. China has promised to revise its existing regulations and ___ new policies according to WTO requirements.
A. forming B. to form C. to be forming D. have formed
39. In the dream Peter saw himself ___ by a fierce wolf, and he woke suddenly with a start.
A. chased B. to be chased C. be chased D. having been chased
38. ___ the employees' working efficiency, the supervisor will allow them to have a coffee break.
A. Improving B. To improve C. Having improved D. Improved
37. You can find whatever you need at the shopping centre, ___ is always busy at the weekend.
A. that B. where C. what D. which
36. There are hundreds of visitors ___ in front of the Art Gallery to have a look at Van Gogh’s paintings.
A. waited B. to wait C. waiting D. wait
35. David said that it was because of his strong interest in literature ___ he chose the course.
A. that B. what C. why D. how
34. Just in front of our house ___ with a history of 1,000 years.
A. does a tall tree stand B. stands a tall tree
C. a tall tree is standing D. a tall tree stands
33. Doris' success lies in the fact ___ she is co-operative and eager to learn from others.
A. which B. that C. when D. why
32. ___ most of the earth’s surface is covered by water, fresh water is very rare and precious.
A. As B. Once C. If D. Although