He felt to work for human rights and progress.
| A．it his duty | B．his duty | C．that is a duty | D．that is his duty |
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 problem |
----What do you think of the film Jurassic Park in 3D?
----It is .
| A．well worthy of watching | B．very worthy to watch |
| C．well worth watching | D．very worth of watching |
According to media reports, the London stadium is other Olympic stadiums in terms of steel used.
| A．as 75% light as | B．75% lighter as |
| C．75% lighter than | D．as light as 75% |
The letter was passed from one to until everyone had read it
| A．the other | B．others | C．other | D．another |
— Can I pay the bill by check?
— Sorry, sir. But it's the management rules of our hotel that payment ______be made in cash.
| A．can | B．need | C．will | D．shall |