My sister spends as much time as she can_______.
| A．practicing to dance | B．practice to dance |
| C．practice dancing | D．practicing dancing |
—What ________ to the boy a moment ago? —The knife cut his tiptoe.
| A．happen | B．happens | C．will happen | D．happened |
—Do you teach ________ foreign languages? —Yes, I learn them on TV.
| A．you | B．yours | C．yourself | D．yourselves |
Jack _______ swim when he was five years old.
| A．can | B．could | C．may | D．must |
I think this problem is _______ that one.
| A．easy | B．easier | C．easier than | D．the easiest |
Mrs Li is planning ______ Beijing with her cousin.
| A．visit | B．to visit | C．visiting | D．visits |