How long do you think_________Obama officially takes office in the White House?
| A．it will be that | B．will it be until |
| C．will it be when | D．it will be before |
—Does he know how to work out the problem?---Yes, he has ___ a good idea to solve it. ----Yes, he has ___ a good idea to solve it.
| A．caught up with | B．kept up with | C．come up with | D．put up with |
---Excuse me,but I want to ride your bike to go to the bookshop.
---You ____ have my bike if you don't take care of it.
| A．shan’t | B．might not | C．needn’t | D．shouln’t |
—Did your uncle phone you again the next day?
---No, it was a fortnight ___ he gave me a second call.
| A．that | B．when | C．before | D．since |
He has made another wonderful discovery,___ of great importance to science.
| A．who I think it | B．which I think it is | C．that I think is | D．which I think is |
—Minister, are you satified with the performance of the Chinese athletes in Beijing Olympics?
---Yes, it couldn't have been _____.
| A．worse | B．better | C．so bad | D．the worse |