情景交际选一选。

1. 你想知道别人会不会游泳，可以问：[ ]

A. You can't swim.

B. Can you swim?

C. Who can swim?

2. 你想让别人稍等一会，可以说：[ ]

A. Wait me.

B. Let me wait.

C. Wait a minute.

3. 你想提醒别人记得关煤气，可以说：[ ]

A. Remember to close the gas.

B. You can remember switch off the gas.

C. Remember to switch off the gas.

4. 你想知道别人是否愿意和你一起踢足球，可以问：[ ]

A. Can you play football?

B. Can you play football with me?

C. Let's play football.

5. 你想表达自己愿意尝试，可以说：[ ]

A. Have a try.

B. Can I try on?

C. I'd like to have a try.

投资组合保险策略的支付曲线是直线。 ( )