把正确的答案圈起来。
（1）-Can I come in?   
-Yes, you can, I’m  ____(finished/finishing) now.
（2） You can____(watch/watched) TV after dinner.
（3）-Do you_____(ride/take) your bike, too? 
-No ,I don’t. I_____(walk/walk to) school.
（4）-What are you doing?   
-I’m_____(getting   dress/getting dressed) now.