题目内容：
1. I find that it is difficult to learn English well, so I mu.st study harder.I find ______difficult_______ _____English well,so I must study harder.
2. He didn't get married until he was in his thirties.
It was______ _______he was in his thirties ______he got married.
3. We started early so that we could arrive there before 8 o'clock.
We started early_______ ______ _______arrivethere before 8 o'clock.
4. They hurried up because it was getting dark.
________ __________ because it was getting dark _______ they hurried up.
5. It's mad of you to go there alone in such bad weather.
________ ________ ________you to go there alone in such bad weather.
参考答案：