Thanks to the weather satellite, scientists can ____ the weather more accurately.
| A．settle | B．command |
| C．forecast | D．broadcast |
There are about 85% of adults _______ the idea of a ban on smoking.
| A．welcome | B．to welcome |
| C．welcomed | D．welcoming |
Temperatures________ quite dramatically at night in mountains, so put on some warm clothes before going out.
| A．are dropped | B．drop |
| C．are being dropped | D．have dropped |
A broad smile spread_____ Jack’s face when he eventually gained a scholarship.
| A．across | B．through | C．at | D．in |
_______ your work on time, otherwise you will be in trouble.
| A．To finish | B．Finishing |
| C．Finish | D．Finished |
He _______ toward the door when suddenly his junior brother opened it unexpectedly.
| A．was walking | B．walked |
| C．had walked | D．had been walking |