把A、B组的句子连接起来，组成合适的状语从句。 A B 1. My grandmother died A. unless it rains. 2. Let’s play basketball B. before I was born. 3. He could swim very well C. because it is time for class. 4. If it doesn’t rain tomorrow D. when he was young. 5. He’ll go E. where we are most needed. 6. I must hurry F. after school is over. 7. We had to walk all the day G. she kept on working. 8. Since he is very busy H. I’ll go to the Great Wall. 9. Although she was very tired I. I won’t trouble him. 10. We must go J. as we had no money for fares.