LEARNING
实战演练
（一） 用适当的介词或副词填空填空。
1. His health has broken ________ after years of working too hard.
2. His parents tried to discourage him ________ being an actor.
- 对本期电子报订户、有效期内的VIP教师会员和本学期高三尊享卡用户，我们开放所有内容：
- 如果您拥有以上权限，请点这里登录；
- 订阅电子报，请点这里；
- 激活VIP教师卡，请点这里；
- 激活21英语尊享卡，请点这里。
