Must we find out the reason today? - No, you _____.
| A．mustn’t | B．don’t have | C．don’t have to | D．needn’t to |
This kind of animals has nearly _____ because their homelands are gone.
| A．died out | B．died of | C．died | D．been dead |
Trees can prevent the wind _____ the earth away.
| A．from blowing | B．to blow | C．blow | D．blows |
There is a paper factory _____ waste water into the river nearby.
| A．poured | B．pour | C．pours | D．pouring |
What's more, planes or machines produce_____ noise.
| A．much too | B．many too | C．too much | D．too many |
Thanks for giving me ____ many presents. I haven't never seen ____ beautiful presents in my life.
| A．so...such | B．such...so | C．so...so | D．such...such |