If metal is heated and then cooled very quickly, , by dipping in cold water, it will be very hard but will break easily.
| A．what’s more | B．in general | C．for example | D．on the other hand |
The Shanghai Expo has attracted more than 73 million tourists, ________ it the most successful in history.
A. makingB. makes
C. made D to make
. I’m examining the composition he has just finished ________ the possible mistakes in it.
| A．to correct | B．correct |
| C．corrected | D．correcting |
Children are always asking all kinds of questions because they are ______ about the world they live in.
| A．curious | B．worried |
| C．anxious | D．careful |
It's quite necessary to be prepared for a job interview. ______ the possible answers ready will be of great help.
| A．To have had | B．Having |
| C．Have | D．Having had |
The traffic rules say children under the age of four and ______ less than 40 pounds must be in a child safety seat.
| A．being weighed | B．to weigh |
| C．weighed | D．weighing |