It hasn’t been announced ______ the plane is to take off.
| A．where | B．when | C．how | D．why |
On the bus, all the people except the driver ______ to talk and laugh during the journey.
| A．encouraged | B．were encouraging |
| C．were encouraged | D．was encouraged |
I really ______ whether we win or lose.
| A．care about | B．care for | C．care | D．care to |
You’ve done much of the work, and please leave ______ to us.
| A．the rest | B．the other | C．another | D．the others |
Don’t ______ a person only because he has failed in an examination.
| A．look up | B．look down |
| C．look down on | D．look up to |
Though we spent a lot, we think it _____ because we succeeded in the end.
| A．worth | B．worth being spent |
| C．worthy of | D．worthwhile |