用括号中所给词的适当形式填空。

1．The girl is good at                （sing）English songs

2．I                    （help）Mom clean the room next Sunday．

3．Some people often go                  （fish）at weekend．

4．I'm                （real）busy today．

5．Li Ping always                     （go）to bed at 9:00 in the evening．

6．My father                     （buy）a bike for me on my 15th birthday．

7．This hook is                  （interesting）of the three．

8．They                     （not see）the film last week

9．Listen! The students                    （read）English in the classroom．

10．Some girls are going to exercise more               （keep）fit．