请用括号中所给词的适当形式完成下列句子。1. How many ______________ (ruler) are there on your desk?
2. My father ______________ (like) sports.
3. Look at the girl. ______________ (she) name is Bai Lin.
4. It's ______________ (rain) today.
5. I like ______________ (play) computer games. 1. rulers 2. likes 3. Her 4. rainy 5. playing / to play