1 . 按要求写出所给词的词形变化
1. prefer—(过去分词)___________、(n.偏爱)______________
2. compete—(n.竞争)___________、(adj.竞争的)______________
3. curious—(n.好奇)______________
4. silent—(n.沉默)______________
5. apply—(过去分词)___________、(n.申请书)_________、(n.申请人)______________
6. grow—(过去式)___________、(过去分词)___________、(n.成长)______________
7. agree—(反义词)___________、(n.同意)______________
8. create—(adj.有创造力的)_________、(n.创造)___________
9. enter—(n.入口、进入)______________
10. permit—(过去分词)___________、(现在分词)___________、(n.允许)______________
11. occasion—(adv.)___________
12. success—(v.成功)___________、(adj.成功的)______________
13. attract—(n.吸引)___________、(adj.吸引人的)______________

2 . We saw them waving to us at a _________(距离) of 200 meters.

3 . The company is ready to meet the __________(挑战) of the new next few years.

4 . ________(专家) point out that fruit juices can be harmful to children's teeth.

5 . There are ______ that high school cheating may be on the rise.

A．evidences

B．symbols

C．sights

D．scenes