用所给词的适当形式填空

1. Do you want________ (make) pumpkin pies with us?

2. My father helped me________(repair) my broken bike,

3. My sister asked me________ (help) her________ (wash)

    her clothes.

4. My parents made me________ (stay) at home alone last

    night.

5. Mr. Green had his son________ (learn) to play football

    when he was six years old.

简述格式塔学派的主要观点。