—_____ you please play tennis with me? —Sorry, I _____.
A. Could; can’tB. Could; couldn’t C. Can; don’t D. Can; couldn’t
Smoking is bad for your health. You should .
A.give up itB.give up themC.give it upD.give them up
Aron water five days later.
A.ran outB.used outC.ran out ofD.used out of
This is______difficult problem that few students can work it out.
A.so B.so a C.such D.such a
.He lives_______in the______village, but he is never_______.
A.alone; alone; lonely B.alone; lonely; lonely;
C.lonely; alone; lonely D.lonely; lonely; alone.
Pollution is a serious problem. Scientists have _______ some good ways to save it.
A. come up with B. come on C. come out D. come up
