1 . He always keeps an eye on shortcomings of his brother’s _________ refusing to admit his own mistakes.

A．but	B．while
C．although	D．though

2 . I think Tom will make a good monitor, ________ I’d like to vote for him.

A．but	B．for
C．or	D．so

3 . 【2018·海淀二模】—Excuse me, sir. Can you spare me a dollar ________ I can buy this book?
—Sure, no problem.

A．for	B．so
C．but	D．or

4 . She doesn’t speak our language,        she seems to understand what we say.

A．yet	B．and
C．or	D．so

5 . The book is now out of print, ______ it can easily be borrowed from libraries.

A．and	B．for
C．so	D．but

6 . I think John will make a good monitor, ________ I'd like to vote for him.

A．but	B．so
C．or	D．for

7 . Peter has previous experience, ______ I think he’s the right person for the job.

A．or	B．but
C．for	D．so

8 . My mother is always warning me when I go out, “Don’t get off the bus ________ it is stopping.”

A．until	B．while
C．before	D．after

9 . I don’t think she visited the exhibition this morning, ______ she was with me at that time.

A．though

B．or

C．but

D．for

10 . —Mum, I broke Dad’s sunglasses this morning.
—You need to make an apology for your fault, ________ you will regret.

A．and	B．or
C．but	D．for