The reason ______ most Chinese have healthy white teeth is ______ they eat a hea

The reason ______ most Chinese have healthy white teeth is ______ they eat a hea

题型:不详难度:来源:
The reason ______ most Chinese have healthy white teeth is ______ they eat a healthy diet.
A.why; thatB.why; becauseC.that; thatD.for; that

答案
A
解析
考查定语从句及名词性从句。句中why引导定语从句,先行词the reason在从句中作原因状语;that引导表语从句,故选A。
举一反三
________________, I was so careless that it got loose and was hit by a car.
A.While I walked the dogB.While I walking the dog
C.While walking the dogD.While I am walking the dog .

题型:不详难度:| 查看答案
Wang kun : Have you looked at a map?
Wang wei : What did you say just now?
Wang kun : I asked you ______________.
A.whether you have looked at a map
B.whether you had looked at a map
C.whether have you looked at a map
D.whether had you looked at a map

题型:不详难度:| 查看答案
a reward of $1,000 will be given to      can provide any clues to the case which has been investigated by the police for nearly half a year.
A.whoeverB.whomeverC.anyoneD.who

题型:不详难度:| 查看答案
— ____ visited the Shanghai World Expo is sure to tell you the place is worthy ____ twice.
— You can say that again.
A.Those who have; visitingB.Whoever has; visiting
C.Those who have; to be visitedD.Whoever has; to be visited

题型:不详难度:| 查看答案
— No one can answer the question _______ we can complete the task in time, do you know?
— Yes, and this is because we don’t know the way _______ the scientist used last time.
A.whether; whichB.if; which
C.whether; in whichD.if; in which

题型:不详难度:| 查看答案
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