--Shopping with me, Tina?

--Sorry, I have much homework _____. [ ]

A. to do          

B. did          

C. do          

D. doing

根据首字母或汉语提示写出单词。

1. The man noticed two policemen coming t______ him.

2. There are several d______ for New York every day.

3. This is the first s______ for you to succeed.

4. She ______ (点头) to us as she walked by.

5. Horses were the only means of ______(交通方式).