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1.My grandpa often complains about his _____ teeth.

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1.My grandpa often complains about his _____ teeth.
A artificial B man-made C false D unreal
(答案是C,为什么不选B或D呢?)
2.It rained a few times during our holiday but on the _____ the weather was fine.
A general B day C whole D program
(C,为什么不是A呢?)
3.Two much rain in the spring ____ the growth of wheat in this district.
A held up B held off C held out D held on
(A,为什么?)
4.Let the boys play in the woods ;they will come no _____.
A hurt B harm C risk D danger
(B,为什么不是D?)
1.My grandpa often complains about his _____ teeth.
1.false teeth是习惯用语了,没有道理的,必须要用false.同样的,还有false hair.
2.固定搭配.on the whole = in general 意思是大体上.
3.hold up 支持
hold off v.不接近; 不使接近; 拖延
——The rain held off just long enough for us to have our picnic.
——雨一时下不起来,我们有足够的时间吃完野餐.
hold out v.坚持; 给予; 维持
——How long will our food supplies hold out?
——我们的储粮还能维持多久?
held on 继续,不挂断,停止
——He held on his studies until he graduated from college.
——他继续学习直到他大学毕业.
4.no harm 短语,无害