1 . “Let the cat out of the bag” is an ________, meaning “to tell a secret by mistake”. （根据句意填空）

2 . Your______ (对手) can become your friend. (根据汉语提示单词拼写)

3 . Don’t ______ (作弊) in the exam. (根据汉语提示单词拼写)

4 . Let’s   join this______ (协会，社团). (根据汉语提示单词拼写)

5 . That is not ______ (长久的) for us. (根据汉语提示单词拼写)

6 . Keep______ (速度) with the time. (根据汉语提示单词拼写)

7 . Have a good______ (心情) every day! (根据汉语提示单词拼写)

8 . Tom lets the ball over the ______ (球网) . (根据汉语提示单词拼写)

9 . Have you read this ______ (名著)? (根据汉语提示单词拼写)

10 . As we all know, the UN is an international o________ made up of more than 190 countries. （根据首字母单词拼写）