【2013湖北孝感】—Look at the young lady in red. Is it Mrs. King?
—No. It _____ be her. She is wearing a white dress today.
| A．can | B．may | C．must | D．can’t |
—We’ll make a trip to Hainan Island next weekend. Will you go with us?
—No, I can’t _____ it at present.
| A．afford | B．save | C．offer | D．accept |
—How many students are there in the classroom?
—_____ I don’t know where they have gone.
| A．No one. | B．None. | C．Nobody. | D．Nothing. |
The rubbish _____ is produced every day is becoming a serious problem in cities around the world.
| A．that | B．who | C．where | D．whom |
More and more trees were cut down. _____, many animals are dying out.
| A．In the end | B．So that |
| C．As a result | D．At last |
We should often keep _____ touch with each other, because we are good friends.
| A．on | B．to | C．in | D．up |