What do you think ______solve the problem?
| A．you can do |
| B．can you do |
| C．you can do to |
| D．can you do to |
He has a friend who ____ the piano very well .
| A．play | B．playing | C．plays | D．played |
I _____ singing to dancing .
| A．like | B．enjoy | C．love | D．prefer |
“Help ____ to some fish .” Mrs. Smith said to the children.
| A．you | B．yourself | C．yourselves | D．yours |
That is a watch of ____ .
| A．his | B．him | C．my | D．me |
There are many tall buildings on ____ sides of the street .
| A．each | B．every | C．both | D．either |