After the new technique was applied to production, the factory has produced ______ over the same period last year.
| A．many cars twice as | B．twice as many as cars |
| C．twice cars as many as | D．twice as many cars as |
Magaret was so ________ to hear any news of her lost son that she was almost driven mad.
| A．relevant | B．annoyed | C．bound | D．dying |
You’d better book the tickets in advance；________ we may miss the chance to enjoy the concert performed by the pop star.
A．however B．otherwise C therefore D．nevertheless
She was scared _______ when hearing the sound of explosion.
| A．to death | B．death | C．of death | D．with death |
Most parents are not __________ the danger of their babies’ eating jelly, which causes most unfortunate incidents to happen.
| A．well aware to | B．very aware of | C．aware that | D．well aware of |
Don’t turn the room __________, as I have just tidied it.
A. inside B upside down C. outside D. inside down