You'd better ______ now.
A、does
B、doing
C、do
D、did
第1题:
I am hungry. So ______ he.
A、does
B、is
C、do
D、did
第2题:
A、does
B、is
C、do
D、did
第3题:
第4题:
We believe that through mutual efforts business can be ()to our mutual benefit.
A、done
B、doing
C、do
D、did
第5题:
( )
A.do
B.doing
C.to do
D.did