Dr Yuan makes______ possible______ one-third more of the crop in the same fields.
A.it; produce | B.it; producing | C.it; to produce | D.it; produced |
______more information ,write to the address below.
A.To | B.On | C.From | D.For |
If you______the right map , we wouldn’t have got lost.
A.have bought | B.bought | C.had bought | D.would buy |
—Which umbrella can I take?
—You can take______of them; I will use none.
A.both | B.any | C.either | D.each |
Living in the desert involves a lot of problems,______water shortage is the worst.
A.of which | B.when | C.of whose | D.Which |
Only when you have obtained enough data______ come to a sound conclusion.
A.can you | B.you can | C.would you | D.you would |