用所给动词的正确形式填空。

1. _______ (take) a bus is much faster than walking.

2. Simon spends a lot of time _______ (practise) playing basketball every day.

3. He with his friends _______ (play) football now in the playground.

4. I will go with you if it _______ (not rain) tomorrow.

5. Can you help me ________ (solve) the problem?

公共政策的研究要与（）相适应。

A.执政者意愿

B.国情

C.人民意愿

D.利益集团意愿