—Must we clean the classroom at once?
—No, you . You can clean it after school.
A. needn’t B. mustn’t C. must
The weather in Guiyang in summer is ___than that in DuYun.. They are different.
| A．cool | B．more hotter |
| C．hot | D．much cooler |
_________ it is snowing， _________ they are still working.
| A．Though； / | B．/； though |
| C．But； though | D．Though； but |
---_______does your mother watch the talk show?
---Once a week.
| A．How long | B．How often |
| C．How soon | D．How many |
It’s_____ black. It’ s ____ black ruler.
| A．/; / | B．A; / | C．/; a | D．A; a |
—How ________ Jim and Gina?
—They are fine.
| A．am | B．are | C．is | D．be |