9After the new technique was introduced，the factory produced ________ tractors in 1988 as the year before.
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 |
I heard a terrible noise in his room and went to see what it was all ___.
| A．around | B．out | C．about | D．through |
One must ___ speak the truth.
| A．sometimes | B．seldom | C．always | D．never |