When ______ comes to research into heart disease and its effects on the body, we

When ______ comes to research into heart disease and its effects on the body, we

题型:不详难度:来源:
When ______ comes to research into heart disease and its effects on the body, we do not have adequate substitutes for the use of animals.
A.thatB.itC.thisD.what

答案
B
解析
考查固定句型:when it comes to“当涉及…的时候”,句意是:当涉及研究心脏病和它对身体的影响时,我们不会有适当的代用品来代替动物。选B。
举一反三
---It’s getting dark, but Mr. Johnson is still at his office.
---No surprise. Who else can ______ he does?
A.do less work thanB.work as hardly as
C.work as hard asD.be working hardly like

题型:不详难度:| 查看答案
As the little boy ______ milk now, he doesn’t want to eat any other food.
A.used to drinkB.used to drinkingC.is used to drinkD.is used to drinking

题型:不详难度:| 查看答案
--- What do you think of the movie Avatar?
--- Interesting. It is _______ again.
A.worth watchingB.worth to watchC.worthy watchingD.worthy to watch

题型:不详难度:| 查看答案
I think the Rockets is the strongest team and there is _______ that it will win the competition.
A.no chanceB.no wayC.no doubtD.no wonder

题型:不详难度:| 查看答案
Not until all the fish died in the river      how specious the pollution was.
A.did the villagers realizeB.that the villagers realized
C.the villagers did realizeD.didn’t the villagers realize

题型:不详难度:| 查看答案
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