---________ tall the red building is!
---Yes, it’s our new library.
| A．What | B．What a | C．How | D．How a |
There is ________”h” and ________”u” in the word “hour”.
| A．an ; a | B．a ;an | C．a ; a | D． an; an |
–Must I finish my homework tonight?
-No, you______.
| A．Can’t | B．Mustn’t | C．needn’t | D．may not |
It’s difficult _____ your sound because the noise is too high.
| A．to listen | B．to know | C．to learn | D．to hear |
- Could you please help me carry the box?
- .
| A．Thank you | B．With pleasure |
| C．It doesn’t matter | D．That’s all right |
I’d like to join the school volunteer project, but I’m not sure ______.
| A．what I should do | B．what should I do |
| C．how I should do | D．how should I do |