Go back home now, Mary. Your parents __________your safety.
| A．are concerned about |
| B．are concerned with |
| C．are concerned in |
| D．concern of |
So absorbedin our talk that my brother took a wrong turn on the way to the airport.
| A．he wat | B．is he | C．was he | D．he is |
If you spit at all, please spit in the bucket(痰孟里)provided
| A．must | B．shall | C．should | D．may |
The visitors lost their way in the forest ; made things worse. was that it began to rain.
| A．that | B．which | C．who | D．what |
—Where will you start your work aftergraduation?
—Mum,it’s not been decided yet. I might continue my study for higher degree.
| A．the,the | B．/,a | C．/,the | D．the,/ |
— My son, who is now studying at a university, uses more than 3,000 yuan a month.
— Well, tell him to be economical. After all, ______.
| A．money doesn’t grow on trees | B．the morning sun never lasts a day |
| C．light come, light go | D．penny wise, pound foolish |