________ change your mind, do let me know.

A．If should you B．Should if you

C．Should you D．You should

—You should have thanked the hostess before leaving.

—I meant ________.But I couldn't find her when I was leaving.

A．to do B．to C．doing D．doing so

His mother likes to have him next to her ________ she can keep an eye on him.

A．where B．in which C．there D．when

I'm sorry you've been waiting so long，but it'll still be some time ________ Brian

gets back.

A．before B．since C．till D．after

How can you expect him to make any progress ________ you never give him a chance to have a try?

A．when B．unless

C．even though D．until

________ in his book, he didn't notice me ________ I entered the room.

A．Devoted; when B．Absorbed; while

C．Absorbed; when D．Devoted; while

________ your blog, I would have written back two days ago.

A．If I read B．Should I read

C．Had I read D．If I could have read

________ the Internet is bridging the distance between people, it may also be

breaking some families or will cause other family problems.

A．When B．If C．While D．Since

________ that they lost the game, tears came down Kate's face.

A．On hearing the news

B．When heard the news

C．The moment she heard the news

D．While hearing the news

I can________the house being untidy, but I hate it if it's not clean.(2011·全国)

A．come up with B．put up with

C．turn to D．stick to