—Do you think the weather will be all right this summer?
—No, _____ we are lucky. The newspaper says it'll be very hot anyway.
| A．if | B．though | C．unless | D．as |
It is __ ___ for a person in his position to make such a mistake.
| A．rare | B．scare | C．usual | D．rarely |
So far his spoken English is improved _____ .
| A．much | B．better | C．well | D．greatly |
It is _____ impossible.
| A．very | B．quite | C．rather | D．fairly |
Don’t leave your work____, .
A done half B. half done C. a half done D. done a have
Four is ____ of two.
| A．double | B．two | C．the two | D．the double |