It will be more than 100 years ____ the country begins once again to look as it did before.
| A．when | B．since | C．before | D．that |
Some students think it is ___ to spend some time surfing the Internet, but we shouldn’t be too dependent on it.
| A．worth | B．worthwhile | C．worthy | D．worthy of |
Not until his mother came back_______.
| A．he began to do his homework | B．had he began to do his homework |
| C．he had begun to do his homework | D．did he begin to do his homework |
—What made Tom so sad? —_______.
| A．His bicycle had been stolen | B．His bicycle to be stolen |
| C．His bicycle’s being stolen | D．His bicycle was stolen |
----Are you happy that your old friend visited you yesterday?
----I would rather he_______. I was so busy then.
| A．didn’t | B．hadn’t | C．hasn’t | D．haven’t |
______sounded unimaginable to everyone present was______ she had managed to finish the task in a week.
| A．What; how | B．It; how | C．It; that | D．What; that |