Wouldn’t it be ____ wonderful world if all nations lived in ____ peace with one another?
A．the; / B．a; / C．the; the D．a; the
—Shall I help you with the washing up?
— ．I'll do it later．
A．Of course B．Don't bother
C．That would be nice D．With pleasure
––What a journey! We’ve finally arrived!
––_____ an out-of-date train schedule, we would not have missed the train.
A．Had we not used B．Did we use
C．If we didn’t use D．If we had used
It was probably at that moment _____ I understood what kindness really was.
A．that B．when C．which D．what
She _____ with the symphony orchestra three times this season.
A．played B．has played C．has been playing D．is playing
It was very kind of you to do the washing-up, but you _____ it.
A．needn’t do B．shouldn’t do
C．mustn’t have done D．needn’t have done
