There were some chairs left over____ everyone had sat down.
| A．when | B．until | C．that | D．where |
She sings __ than any other girl in her class.
| A．a lot better | B．a lot more better | C．more a lot better | D．a lot well |
The Yello River is long, but the Yandtze River is __.
| A．even longer | B．long | C．much long | D．so longer |
It was raining ___ when I woke up last night.
| A．heavy | B．heavily | C．heavier | D．heavily |
Soon there is enough force to lift the plane ___ the ground.
| A．off | B．of | C．up | D．out |
You had better give ___ smoking
| A．back | B．over | C．out | D．up |