—Who has broken the window in my room?
—Who else it but your naughty son!
| A．could do | B．could have done | C．might do | D．must have done |
He must have gone out. I heard the noise of the door ______when I was still in bed.
| A．being locked | B．to lock | C．locking | D．having locked |
We think it possible _____ the local government will be able to solve the housing problem.
| A．what | B．that | C．when | D．how |
We agreed ____ here but so far she hasn’t turned up yet .
| A．having met | B．meeting | C．to meet | D．to have met |
. Could ______ be in the restaurant ______ you lost your handbag?
| A．it; which | B．it; that | C．that; that | D．that; where |
One of the requirements for a fire is that the material ____to its burning temperature.
| A．is heated | B．will be heated | C．be heated | D．would be heated |