Air is all around us.

[单选题]Stone is all around us. Stone is usually very hard, 46 it can also be soft. Stones have many uses.In some 47 , artists carve (雕刻) beautiful things out of soft stones, because they can be shaped easily. In ancient times, people carved 48 persons or an

[单选题]We are not immuneto the [influences] around us.A.unaffected byB.influenced

[单选题]It was very [thoughtful]of you to make all the necessary arrangements for u

[单选题]Your terms of payment are（）to us.A . agreeB . agreedC . agreementD . agreeable

[单选题]Alice sings _______ than us.A.the betterB.goodC.the bestD.better

[单选题]The professor [interpreted]the poem for us.A.extendedB.spentC.expandedD.exp

[试题]In the US. one experiment in nerve regeneration involves______(cut)a big nerve in a rat's leg，leaving its leg paralysed.

[主观题]Youhavegreatly_______us.Whatyouhavedoneisnotwhatyoutoldusaboutseveralweeksago.A.disappointedB.desertedC.clarifiedD.opposed

[单选题]She is very dear to us. We have been prepared to do it takes to save her life.A． whichever B. however C. whatever D. whoever

[单选题]She is very dear to us. We have been prepared to do ( ) it takes to save her life.A． whichever B. however C. whatever D. whoever