-I didn't go to the art show, because I lost my ticket．
-You______have borrowed mine I didn't go to see it anyway
A．would B．need C．could D．must
Birds'singing is sometimes a warning to other birds________away.
A．staying B．stayed C．stay D．to stay
Interest is as_______to learning as the ability to understand,even more so.
A．vital B．available C．specific D．similar
I'm pleased to hear that you've come here to _______this matter in person.
A．lead to B．see to C．refer to D．turn to
It's everybody's desire that every effort___________to reduce the pollution in our city.
A．be made B．is made C．will bi made D．must be made
Mary waited for a reply, but__________came.
A．no one B．none C．nothing D．neither
