--- This math problem is _____ hard for me to understand. Can you help me ?
----Sure. It’s my pleasure.
| A．very | B．too | C．quiet | D．rather |
–Do you mind my ______ here?
--___________. Smoking is not allowed here.
| A．smoking , Please don’t | B．smoking, Yes, of course |
| C．smoke, Certainly | D．to smoke, Sorry. |
.—Why not _______us and have a good time at the party?
---I would love to. ________ I have a lot of homework to do.
| A．join in , But | B．take part in, And | C．join, And | D．join. But |
—The old man is ill. He ________ to the hospital at once.
--Don’t worry. A doctor _________to come already.
| A．must be sent , has asked |
| B．must send, have asked |
| C．must be sent, has been asked |
| D．must send, have been asked |
---___________ will the weather be like tomorrow?
--There will be a thunder storm. I don’t know _____ to do when the storm comes.
| A．What, how | B．How, what | C．How, how | D．What, what |
--_________ can cormorants stay under the water?
--_________ up to two minutes.
| A．How soon, For | B．How often, / | C．How long, For | D．When ,For |