Miss Gao asked a question， but it was ___________that nobody could answer it.
| A．very difficult | B．too difficult |
| C．difficult enough | D．so difficult |
— Your aunt often walks the dog in the morning.
— Yeah, ___________ bad weather stops her.
A. when B. unless
C because D. since
— David, why are you so excited?
—My father has made a _________ that he will take me to Tibet next month.
| A．face | B．contribution |
| C．promise | D．mistake |
—Mum, may I have some cakes?
— Sorry, there’s ____________ left in the box. I’ll go and buy some for you tonight.
| A．nothing | B．no one |
| C．no | D．none |
The fire is dangerous. We should _____________ as quickly as possible.
| A．put out it | B．put it out |
| C．put it away | D．put it off |
The official said they ________ a new law to protect the tourists the next year.
| A． makes | B．would make |
| C．made | D． have made |