While working in the countryside , the students ________ a great deal of knowledge on plant life.
| A．looked up | B．picked up | C．put up | D．called up |
I believe it must have been in the hotel we stayed I lost my computer.
| A．that, where | B．that, that |
| C．which, that | D．where, that |
he visited the new school, he showed great interest in everything he saw.
| A．It’s the first time | B．For the first time |
| C．The first time | D．At first |
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% |