The traffic rule says young children under the age of four and __ _ less than 40 pounds must be in a child safety seat．
| A．weighing | B．weighed | C．being weighed | D．to weigh |
I think that's unlikely to happen, but if that ______ occur, both America's and China's interest would be severely damaged.
| A．should | B．could | C．would | D．might |
you may have , you should gather your courage to face the challenge .
| A．However serious a problem | B．Whatever serious a problem |
| C．However a serious problem | D．No matter how a serious |
I couldn’t do my homework with all that noise ________.
| A．going on | B．goes on | C．went on | D．to go on |
Economic growth in the world remains weak throughout 2012 and it is hoped that it will _____ gradually in 2013.
| A．break up | B．make out | C．work out | D．pick up |
---How do you find James Cameron's 3D version of Titanic?
---Fantastic! It can't be _______ and has brought us a wonderful experience.
| A．more impressive | B．as impressive | C．most impressive | D．so impressive |