（浙江金华）We________be more careful，or we will make the same mistake in the experiment．
| A．might |
| B．can |
| C．may |
| D．should |
He lost his key. It made him ________ in the cold to wait for his wife’s return.
| A．to stay | B．stayed |
| C．stays | D．stay |
---___________ is the Summer Palace from here?
---About three kilometers away. You can take the No.35 bus.
| A．How long | B．How far |
| C．How often | D．How much |
__________ good time we had during the May Day holiday!
| A．What a | B．What |
| C．How | D．How a |
This week, the _______ seems to change every day: one day is hot; the next day is cold.
| A．time | B．season |
| C．weather | D．way |
It is useful book. I borrowed it from school library.
| A．an ; a | B．a ; an |
| C．an; the | D．a ; the |