1、How many more decades will have to pass ______ scientists succeed in providing a cure for cancer?(单选题)
A. when
B. before
C. since
D. until
试题答案:B
2、The methods of preserving food ______.(单选题)
A. don’t include the method of salting food
B. involve the use of chemicals
C. are not liked by most people
D. are first created by hunters
试题答案:B
3、This is one of the best films that ______ this year.(单选题)
A. is appearing
B. appear
C. has appeared
D. have appeared
试题答案:D
4、Large quantities of water ______ for irrigation.(单选题)
A. is needed
B. has needed
C. are needed
D. need
试题答案:C
5、We can infer from the first paragraph that ______.(单选题)
A. there tends to be disagreement about what character education is
B. most parents are not satisfied with the teaching methods adopted in schools
C. the approach to character education is generally considered different from the approaches to other skills
D. more and more schools are adopting strategies to improve school attendance
试题答案:C
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