A.should
B.must
C.need
D.can
[单选题]There are many trees on ______side of the river.A.bothB.eitherC.allD.a
[问答题]Trees need water to grow.
[问答题]Trees need water to grow.
[单选题]On ________ side of the street there are some trees.A.bothB.eitherC.everyD.
[问答题]Trees need water to grow.
[单选题]A.lthoughtheyplanttreesinthisareaeveryyear,thetopsofsomehillsarestill_______.A)blankB)hollowC)vacantD)bare
[单选题]Passage ThreeTrees should only be pruned (修剪) when there is a good reason for doing so. Many gardeners believe that more damage results from doing it unnecessarily than from leaving the tree to grow in its own way.F.irst, pruning may be done to make
[单选题]7._________ the young trees is our duty.A. Take good careB. Taking good care ofC. Taking good careD. Take good care of
[单选题]The explosion [scattered]a flock of birds roosting in the trees.A.departedB
[试题]Youwillwanttwotreesabouttenfeetapart,from_____tosuspendyourtent.(A)there(C)which(B)them(D)where