People have planted a great many trees in order to ____wind and sand in the desert.
A.hold down | B.hold up | C.hold back | D.hold out |
— It’s too late. Let’s leave it tomorrow.
— ________! We can start it earlier next morning.
A.Oh, come on | B.It’s my guess | C.That’s it | D.It’s up to you |
—Mummy, could you buy me a skirt like this?
—Certainly. We can buy ________ one than this, but ________ this.
A.a better; better than | B.a good; as good as |
C.a cheaper; as good as | D.a more expensive; not as good as |
There is ________ in population that a food shortage is caused.
A.so rapid an increase | B.such rapid an increase |
C.such rapid increase | D.so a rapid increase |
________ with the other students, the girl has better listening and speaking ability.
A.Comparing | B.Compares | C.To compare | D.Compared |
He always helps us ________ he is doing when we turn to him for help.
A.whenever | B.whatever | C.whichever | D.however |