—When did the computer crash?
—This morning，while I ________ the reading materials downloaded from some websites.(2012·福建)
| A．have sorted | B．was sorting |
| C．am sorting | D．had sorted |
－________I forgot to watch the football game on TV yesterday evening.
－Not to worry. I have recorded it.
| A．Excuse me! | B．What a pity! |
| C．How come? | D．Sorry for you! |
There’s no doubt _____enough concern must be paid to the problem of the stayathome children.
| A．which | B．whether | C．that | D．what |
Their relationship，______ on years of open communication with each other，will last.
| A．base | B．to base | C．basing | D．based |
I’d like to start my own business — that’s _____ I’d do if I had the money.
| A．why | B．when | C．which | D．what |
I’m the first girl ________college in our village，which makes my parents very proud.
| A．to attend | B．attending | C．attended | D．having attended |