—Da-Fa is cleaning the house
—_____ some of his friends are coming for dinner.
A．because
B．but
C．if
D. so
“Are you going to eat here ____ take it away?” asked the waiter..
A．and
B．so
C．or
D. but
None of the shoes in the shops are the right size. They are _____ too big _____ too small.
A．both; and B．neither; nor
C．either; or D．not only; but also
_____ Lily _____ Lucy may go with you because one of them must stay at home.
A．Not only; but also B．Neither; nor
C．Both; and D．Either; or
The doctors tried their best to save the patient’s life, _____ failed.
A．or B．so
C．but D．because
— Would you like to go to the concert with me?
— I’d love to, _____ I can’t. I have a lot of homework to do.
A．or B．but C．so D．and
