完形填空答案（适用四六级）
1. B) spare
2. D) features
3. A) Or
4. B) despite
5. B) combat
6. C) current
7. B) Traditionally
8. A) to
9. D) runs
10. D) However
11. B) trend
12. C) as
13. A) supplement
14. C) from
15. A) implemented
16. B) open
17. D) off
18. B) move
19. A) in
20. A) instantly
改错答案 （适用于六级）
1.dangerous > dangerously
2.rare > numerous
3.in past > in the past
4.for > by
5.away > out
6.do > doing
7.thousands letters > thousands of letters
8.threat > threaten
9.in > along
10.good > well
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