I spent half an hour ______ this difficult math problem.A、having worked onB、to

游客2025-03-01 86

问题 I spent half an hour ______ this difficult math problem.

选项 A、having worked on
B、to work on
C、on work
D、working on

答案 D

解析本句测试“spend (some time，some money)in doing sth (on sth)”句型，因此选D。例如；He spent his life writing the book. (他花一生的时间写这本书。) He spends more time on sports than on studies. (他花在体育运动上的时间比花在学习上的时间多。)

转载请注明原文地址:https://tihaiku.com/zcyy/3978406.html

相关试题推荐

Doyoufinditverydifficultandpainfultogetupinthemorning?Thismig
______ateacher,onemustfirstbeapupil.A、BeingB、HavingbeenC、TobeD、Toh
Ispenthalfanhour______thisdifficultmathproblem.A、havingworkedonB、to
John:I’mtired.I’mhavingnextweekoff.Lily:______Thebreakwilldoyoug
im:Youlookunhappy,______?Linda:I’mhavingsomeproblemswithMath.A、What
Oneofthebasicrulesofhavingadogisthatyou______giveitexerciseeveryd
Theirdifferentattitudestothedifficulties______differentresults.A、arriveda
Havingbeenfoundguilty,themanwasgivenasevere______bythejudge.A、service
W:I’mterriblysorryI’mlate.Ihadratheradifficulttimefindingyouroffic
Itseemsverydifficult_____.A、tostopthechildtocryB、restrainingthechild

随机试题

By【51】outonajourneytonewandexcitingachievements,alearnerhastodi
SexisminEnglishSexisminEnglishlanguagereflect
土工合成材料的厚度一般在（）压力下测量。A：0.5kPa B：1.0kPa
进入中国大陆须在指定口岸向边防检查站交验有效证件，填写入境卡的人员是()。A.
患者男性，29岁。3天来高热、头痛、乏力、全身酸痛，行走时小腿疼痛，伴有咳嗽。发
患儿，日龄25天，患新生儿败血症入院。体温39℃，反应低下，精神萎糜，面色苍白，
不属于胆色素的物质有A.细胞色素 B.胆素原 C.血红素 D.胆绿素
企业因销售商品收到商业汇票一张，下列账务处理中正确的是（）。 A.借：银行
背景：M、N两市隔海相望，直线距离约100Km，由于海运运力不足，公路铁路运输
可进行骨髓移植治疗的贫血是 A.巨幼细胞性贫血 B.再生障碍性贫血 C.自

最新回复(0)

I spent half an hour ______ this difficult math problem.A、having worked onB、to

Doyoufinditverydifficultandpainfultogetupinthemorning?Thismig

______ateacher,onemustfirstbeapupil.A、BeingB、HavingbeenC、TobeD、Toh

Ispenthalfanhour______thisdifficultmathproblem.A、havingworkedonB、to

John:I’mtired.I’mhavingnextweekoff.Lily:______Thebreakwilldoyoug

im:Youlookunhappy,______?Linda:I’mhavingsomeproblemswithMath.A、What

Oneofthebasicrulesofhavingadogisthatyou______giveitexerciseeveryd

Theirdifferentattitudestothedifficulties______differentresults.A、arriveda

Havingbeenfoundguilty,themanwasgivenasevere______bythejudge.A、service

W:I’mterriblysorryI’mlate.Ihadratheradifficulttimefindingyouroffic

Itseemsverydifficult_____.A、tostopthechildtocryB、restrainingthechild

By【51】outonajourneytonewandexcitingachievements,alearnerhastodi

SexisminEnglishSexisminEnglishlanguagereflect

土工合成材料的厚度一般在（）压力下测量。A：0.5kPa B：1.0kPa

进入中国大陆须在指定口岸向边防检查站交验有效证件，填写入境卡的人员是()。A.

患者男性，29岁。3天来高热、头痛、乏力、全身酸痛，行走时小腿疼痛，伴有咳嗽。发

患儿，日龄25天，患新生儿败血症入院。体温39℃，反应低下，精神萎糜，面色苍白，

不属于胆色素的物质有A.细胞色素 B.胆素原 C.血红素 D.胆绿素

企业因销售商品收到商业汇票一张，下列账务处理中正确的是（）。 A.借：银行

背景：M、N两市隔海相望，直线距离约100Km，由于海运运力不足，公路铁路运输

可进行骨髓移植治疗的贫血是 A.巨幼细胞性贫血 B.再生障碍性贫血 C.自