They must have been enjoying themselves there，or they __________ so long．
| A．wouldn’t stay | B．needn’t have stayed |
| C．wouldn’t have stayed | D．couldn’t stay |
It is the test system, _______ the teachers, that is to blame for the heavy burden of middle school students nowadays.
| A．other than | B．or rather | C．rather than | D．more than |
This is a difficult and stressful job, but one _____ you can really help people.
| A．that | B．where | C．which | D．of which |
A feather falls slower than a stone only because the air holds the feather back more than it ______ the stone.
| A．does | B．holds | C．will | D．is |
The old black woman used to tell stories under the tall tree, her grandchildren ______ around and ______attentively.
| A．seating; listening | B．seated; listened | C．seating; listened | D．seated; listening |
According to _______ recent report, large ice cream producers usually havebetter production record.
| A．a; the | B．不填; a | C．a; a | D．the; the |