从Ⅱ栏中找出与 I 栏配对的句子。

                                 I

(      ) 1. If she doesn't do her homework quickly,

(      ) 2. If I study hard,

(      ) 3. If he can't catch the bus,

(      ) 4. If Lucy tidies her room every day,

                              Ⅱ

        A. he'll be late for work.

        B. I'll pass the exam.

        C. she won't finish it.

        D. it won't be so dirty.