读句子，理解划线词语的好处。

它们小心翼翼地向四周试探了一番，便迅速逃离了。

2016年第31届夏季奥运会将在巴西的里约热内卢举行．读相关资料图，回答下列问题

下面是王老师编写的记忆中国近代某不平等条约的歌诀，该条约的签订（    ）

根据短文理解，从A、B、C、D四个选项中选择最佳答案填空。

    I have a cousin. 1 name is Eric. He is 2. He likes music and he can play 3 very well. But he 4 want to join the music club. He wants 5 the art club. He wants to learn 6. I don't like music 7 art, I like sports. I can play tennis. I can 8 swim but I can't swim 9. I want to join the sports club. My friends are in that club. I want to play sports with 10.