Why do you keep this completely ____ umbrella, which is broken?
| A．useless | B．unused | C．useful | D．using |
Teachers’ advice of ______ stress over the school days must be granted by the headmaster.
| A．students to reduce | B．students reducing |
| C．students reduced | D．students being reduced |
Failure can make a positive contribution to your life _______ you learn to use it.
| A．since | B．unless | C．until | D．once |
The police have issued a detailed ____________ of the missing boy.
| A．direction | B．expression | C．description | D．instruction |
—Did you receive my letter?
—I received one just as I .
| A．set out | B．had set out | C．was setting out | D．would set out |
I’d love ______ room on the higher floor so that I can have a bird’s-eye view of _____ city.
| A．the; a | B．a; the | C．不填; the | D．a; a |