20. Which of the following signs means “This way is for a disabled person to go through"?

19.--- Is Mrs Black really badly ill?

.　　　 　　　---____________. She is in hospital.

A. I don’t think so　 B. No, she isn’t　　 C. I don’t hope so　 D. I am afraid so

18．(　 )-I’m sorry I’m late，because the traffic is bad．

-　　　　 ，but tomorrow，please be on time．

　　　　 　A．It’s a pleasure　 B．You’re welcome　 C．It doesn’t matter　　 D. That’s right

17. After I 　　all my pockets for the ticket I suddenly remembered 　　　it in the wallet.

A. searched, to put　 　　　　　　　　　　　 B. looked, putting　

C. checked, putting　 　　　　　　　　　　　 D. saw, to put

16. --We can use QQ to talk with each other on the Internet.

- Really? Will you please show me ____ it?

A. what to use　　 B. how to use　　　 C. how can I use　　 D. what can I use

15. I ________ play computer games until I ____________.

A. don’t;　 will be allowed　　　 　　 　B. won’t ;　 am allowed

C. will;　 am allowed　　 　　　　　　　D. will;　 don’t allow