Japan’s economy _______ in the past twenty years. No one knows how long it ______ before it regains its increase.
| A．has been declining; will be | B．has declined; would be |
| C．had been in decline; would take | D．was on the decline; will take |
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 |
Information has been put forward__________more middle school graduates will be admitted into universities.
| A．while | B．that | C．when | D．as |
I read about it in some book or other，does it matter__________it was？
| A．where | B．what | C．how | D．which |