1. 13岁时，他就在国家队打篮球。
    He began to play for his national team at the ________ _________ l3.
2. 大卫的妈妈病了，他不得不照料她。
    David's mother is ill and he has to ________ _________ of her.
3. 我的压力很大，因为我考试不及格。
    I feel________ _________ because I didn't pass the exam.
4. 请你把垃圾带出去好吗?
    Could you please________ ________the wash?
5. 昨晚直到妈妈回家，我才睡觉。
    I________ go to bed________ my mother came back home last night.