At school，some students are active ________ some are shy，yet they can be good friends with one another. (2012·四川，4)
| A．while | B．although |
| C．so | D．as |
I don't know why she is looking at me she knew me. I've never seen her.
| A．as | B．although | C．even if | D．as if |
Every minute is made full of our lessons well.
| A．to use, study | B．use, studying | C．use, to study | D．used, studying |
At the meeting, many problems , which mean we still had a long way to go.
| A．came up with | B．came along | C．came to | D．came up |
The students asked me going to be held.
| A．when is the party | B．when the party was |
| C．when the party is | D．when was the party |
The children parents are away working in cities are looked after well.
| A．which | B．whose | C．that | D．who |