Laura __________ in the office for 4 hours. Tell her to have a rest, please.
| A．works | B．was working | C．worked | D．has worked |
— Look! The girl ______ long hair is making a snowman. Is she Sandy?
— It _______ be her. I’m not sure.
| A．with, mustn’t | B．has, must |
| C．has , can’t | D．with, may |
The Maths problem is so difficult that _______ students can work it out.
| A．few | B．a few | C．little | D．a little |
It’s quite cold outside, you had better _________the windows.
| A．don’t open | B．not to open |
| C．not open | D．not opening |
The number of the giant pandas in China is getting but the red crowned cranes are getting .
| A．more and more, more and more |
| B．larger and larger, fewer and fewer |
| C．less and less, smaller and smaller |
| D．smaller and smaller, fewer and fewer |
Look! There are many in the sky. I think it will be tomorrow.
| A．cloud, cloudy | B．cloudy, cloud |
| C．clouds, cloudy | D．cloudy, cloudy |