They have to work on Sundays,_____they don’t like .
| A．but | B．so | C．that | D．which |
__________ we’ll go camping tomorrow depends on the weather.
| A．If | B．Whether | C．That | D．Where |
—I think it is going to be a big problem.
—Yes，it could be.
—I wonder__________we can do about it.
| A．if | B．how | C．what | D．that |
In the after-class activities，the students had plenty of_________ and gained a lot of practical _________.
| A．exercises;experiences |
| B．practices;experience |
| C．practice;experience |
| D．exercise;experiences |
She is American，__________she knows little about American history.
| A．so | B．yet | C．and | D．therefore |
The science of medicine，__________progress has been very rapid lately，is perhaps the most important of all the sciences.
| A．to which | B．in which |
| C．which | D．with which |