-Turn off the TV,Jack.your homework now?
-Mum,just ten more minutes,please.
| A． | Should you be doing | B． | Shouldn't you be doing |
| C． | Couldn't you be doing | D． | Will you be doing |
In the recent coal mine accident, more than one hundred miners were left ______underground.
| A．to be trapped | B．trapped | C．having trapped | D．trapping |
________ is known to us all is that Antarctica is the coldest place on Earth.
| A．It | B．As | C．What | D．That |
It was from only a few supplies that she had bought in the village ______the hostess cooked such a nice dinner
| A．where | B．that | C．when | D．which. |
The children all turned____ the famous actress as she entered the classroom.
| A．looked at | B．to look at | C．to looking at | D．look at |
--Do you enjoy your present job?
--____________. I just do it for a living.
| A．Of course | B．Not really | C．Not likely | D．Not a little |