Mary had promised to give me a ticket for tomorrow. She failed, ____.
| A．either | B．though | C．but | D．too |
I asked for some more cake, but there was left.
| A．no one | B．none | C．a little | D．a few |
—Is it OK to take this seat?
—Sorry, .
| A．it’s taken | B．take it | C．here you are | D．never mind |
-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 |