Choose the proper sentences to complete the dialogue.(选择适当的句子完成对话。)
1. If I study harder, _________ 2. If she doesn't do her homework quickly, _________ 3. If he can't catch the bus, _________ 4. If he doesn't feel better, _________ 5. If Lucy tidies her room every day, _________
a. he will be late for work. b. he has to see the doctor. c. I'll pass the exam. d. she won't finish it. e. it won't be so dirty.
