仿照例子填空。

例： go → went  

take →                              sing →                            eat →                

have →                             do →                               make →               

dance →                           learn →                            climb →              

ski →                

用所给词的适当形式填空。

1. May I talk to ___ (she)? 　　

2. A plane is ___ (快) than a train. 　　

3. A bike is ___ (便宜) than a car. 　　

4. A man is ___ (slow) than a bike.