It’s important _______ the piano well.
A. of him to play B. of him playing C. for him to play
When I walk_____ the classroom, all the students are listening carefully.
| A．passed | B．to pass | C．past | D．pass |
Please read them carefully. ____ you are, ___ mistakes you’ll make.
| A．The more carefully, the fewer | B．The more careful, the less |
| C．The more carefully, the less | D．The more careful, the fewer |
______ all the stories, I think the first story is ______ one.
| A．In; the most funny | B．Of; the most funny |
| C．Of; funniest | D．Of; the funniest |
— The classroom iscleanit was yesterday.
— Sorry, I forgot to clean it.
| A．as; as | B．so; as | C．not so; as | D．more; than |
John is ______ honest boy. He has______ useful book.
| A．an; an | B．a; a | C．a; an | D．an; a |