Doing morning exercises has helped to improve her health, ______?

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问题 Doing morning exercises has helped to improve her health, ______?

选项 A、isn’t it
B、hasn’t it
C、hasn’t they
D、hasn’t she

答案B

解析反意疑问句题。当不定式短语、动名词短语、或其他短语作陈述句部分的主语时，反意疑问句的主语通常用it。本句陈述句部分动词为has，故反意疑问句为hasn’t it。故B正确。

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专业英语四级

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Doing morning exercises has helped to improve her health, ______?

专业英语四级

WhichofthefollowingsentencesisINCORRECT?

Thestatistics______thatlivingstandardsintheareahaveimproveddrasticallyinrecenttimes.

Thefootballmatchwas______becauseoftheheavyrain.

Healthis______countsmost.

Thelocalpoliceareauthorizedto______anyone’smovementsastheythinkfit.

DeniseSimmonsreceivedaburstofnationalattentionwhenshebecamemayorofCambridgeinJanuary,butsaysher25yearsofpo

Thesteadyhumofschoolheatingsystemsandair-conditionerscanmeanlowertestscoresformanyyoungstudents,foundanewst

ThenewLenovolaptopwiththebutterflykeyboardandthebuilt-inFAXmodemisapretty______machine.

Anewlaptopcostsabout______ofasecond-handone.

Shemusthavebeenpretty_____tofallforsuchanoldtrick.

A、二阴煎B、养心汤C、大补元煎D、左归丸E、滋水清肝饮郁证阴虚火旺型宜选用

壳体三大功能是()。

A、 B、 C、 D、 A本题是一个多重数列。开方数依次为2，3，4，5，构成等差数列，故下一项为6；根号内的数为2，3，5，8，构成二级等差数列，下一项为12。故选A。

某二叉树中有n个度为2的结点，则该二叉树中的叶子结点数为

Itisnotlongsinceconditionsinthemineswereworsethantheyarenow.Therearestill【C1】______afewveryoldwomenwhoin

JohnWilliams’houseismadeof