The reason why he was late for school this morning is __________ his bike broke down on his way to school.
| A．that | B．because |
| C．since | D．as |
Time to us all is limited. So in the days _______, we must work out a practical plan for our study and keep to it strictly.
| A．following | B．to follow |
| C．followed | D．being followed |
—Look, the paint is starting to come off ______ the wall is damp.
—Well, we’d better have the wall repainted some day.
| A．when | B．once |
| C．if | D．where |
We believe the time and hard work _______ in completing such an important project are worthwhile.
| A．involved | B．involving |
| C．to involve | D．to be involved |
Anyone be in a rough life time, whether he is “Bai Fumei” or “Gao Fushuai.”
| A．must | B．will |
| C．can | D．should |
—Why not find a new job?
—Why should I? I _____ as much, but I like what I'm doing.
| A．didn't earn | B．don't earn |
| C．hadn't earned | D．haven’t earned |