The parcel was a whole week late. How I wish I ________ air mail instead.
A．had chosen B．would choose
C．chose D．choose
—Could you please have my car ready today?
—Sure, the damage is not that serious, so it ________ be ready by 5：00 pm.
A．should B．could
C．might D．need
The sleeping baby would be scared ________ a sudden loud noise.
A．was there B．there was
C．should there be D．there should be
—Mum, I'm tired.
—Well, if you ________ go to bed after midnight every night, what do you expect?
A．will B．may
C．should D．can
Brain, like muscles, also needs some kind of exercise and nutrition. The more you use your brain in the right direction, the more you ________ enhance your ability.
A．could B．might
C．shall D．will
We all know that we ________ our carbon footprint, but I suspect that many people wouldn't be prepared to go as far as Joan Pick, a retired scientist living in south London.
A．must have reduced B．should have reduced
C．may have reduced D．could have reduced
