—I’ll go on a visit to Mount Huang.—____A. Thank you. B. Have a good trip! C. Never mind.
This kind of animals has nearly _____ because their homelands are gone.
Trees can prevent the wind _____ the earth away.
There is a paper factory _____ waste water into the river nearby.
What's more, planes or machines produce_____ noise.
Thanks for giving me ____ many presents. I haven't never seen ____ beautiful presents in my life.