动词填空。

1. This is a good place_________ (meet) friends.

2. They_________ (plan) to have a trip now.

3. It _________ (rain) a lot in the south in summer.

4. Please take your turn _________ (get ) on the bus.

5. He needs us _________ (help) him with his English.

6. Tom, _________  (not play ) in the street. It's dangerous.

7. It's eight o'clock now. The Whites _________ (eat) snacks while they _________ (watch) a video.

8. Pease ask Wangbing __________(call) me.

9. Thank you for_________ (invite) us to your party.

现代企业是一个由投人、( )、产出、反馈等过程要素相配合的系统转换过程。

A．替换

B．周转

C．转换

D．转变