一Climate change________mainly by too much CO 2 in the air．
一So I think the key is to produce electricity without creating CO2
A．is caused B．caused C．causes
—Could you buy us _________ drinks? —Sorry, I don’t have _____ money.
| A．any; any | B．any; some | C．some; some | D．some; any |
Could you _____the window? I feel a little cold.
| A．please not open | B．please not to open |
| C．not please to close | D．please not to close |
--- Millie, do you mind if I turn on the TV?
--- ________. My grandma is sleeping now.
| A．No, of course not | B．Yes, please | C．You’d better not | D．That’s OK |
--- Mrs. White, when shall we go for a picnic?
---If it _____, we _____ for a picnic in the park tomorrow.
| A．rains；will go | B．will rain；go | C．doesn’t rain；will go | D．doesn’t rain；go |
There was a big fire in the street last night, but the firemen _______ within twenty minutes.
| A．took it out | B．brought it out | C．worked it out | D．put it out |