___ , we would have taken raincoats with us.
| A．Had we known | B．We had known it | C．If we were known | D．If we know |
The machine is so old ___ it can’t be used any more ___ some of its parts are changed.
| A．as, unless | B．that, unless | C．that ,if | D．whether, or |
--This store has such high prices.--- I agree. Never again ___ here.
| A．I will | B．will I shop | C．I do shopping | D．I do shop |
Mary is ___ honest girl and will go to ___ college after she finishes middle school.
| A．a, a | B．an, the | C．a, the | D．an, / |
Are there any ___ things on the moon?
| A．aliving | B．live | C．alive | D．life |