English is difficult________. Nobody can learn to use it in a few minutes.A．learningB．to be learnedC

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• You can spend your free time in our library.There is a reading room ________ more than 600 students.
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• Ben received an invitation to dinner, and with his work ________， he accepted it happily.A．finished
• All reference books ________， he didn't find the key to the question.A．being searchedB．searche
• —Can you come up with another good idea?—This is the best approach I can imagine ________ the work a
• During the flood many students volunteered ________ through the weekend, giving out food and water
• Our waste recycling project ________ a lot of investigation and paperwork had been done by the end
• 27. The boy was busy doing his homework, only_____once in a while to look out of the window.A．stoppi
• I found him _____ on his back _____ upward.A．lie; lookedB．lying; lookingC．laying; lookingD．lying; lo
• 先化简，再求值：3x-3yy2-x2+x2-2xy+y2x2-y2-x2-x-6x+2÷(x+y)，其中x=3，y=1．-数学
• 计算：(1x-2-1x+2)•x2-4x=______．-数学
• —Come on, please give me some ideas about the project.—Sorry. With so much work _______ my mind, I a
• I’m examining the composition he has just finished______the possible mistakes in it.A．correctingB．to
• 金泉街道改建工程指挥部要对某路段工程进行招标，接到了甲，乙两个工程队的投标书，从投标书中得知：甲队单独完成这项工程所需天数是乙队单独完成这项工程所需天数的；若由甲-八年级数学
• 某市为治理污水，需要铺设一段全长为300m的污水排放管道，铺设120m后，为了尽量减少施工对城市交通所造成的影响，后来每天的工效比原计划增加20％，结果共用30天完成这一任务-八年级数学
• A、B两种机器人都被用来搬运化工原料，A型机器人比B型机器人每小时多搬运20千克，A型机器人搬运1000千克所用时间与B型机器人搬运800千克所用时间相等，两种机器人每小时分别-八年级数学
• The fireman told us the troubles they had ________ the fire ________.A．getting; controlledB．got; con
• Many of the one­family children are so accustomed to ________ that they react violently when the
• If you think that treating a woman well means always ________ her permission for things, think again
• 已知，，，...若（a，b为正整数），求分式的值。-八年级数学
• Every morning Jack's wife will stand before the mirror, ________ carefully until she has to go
• 化简：x-1x÷(x-1x)，并求出当x=12时的值．-数学
• 通惠新城开发某工程准备招标，指挥部现接到甲、乙两个工程队的投标书，从投标书中得知：乙队单独完成这项工程所需天数是甲队单独完成这项工程所需天数的2倍；该工程若由甲队先-八年级数学
• 我市在筹办“世界华人寻根节”期间，实施了一项治理环境的工程，经调查得知，甲工程队单独完成这项工程的时间是乙工程队的2倍，甲，乙两队合作完成这项工程需要10天时间，甲，-八年级数学
• —The hall___ for international conferences is of great importance．—I see, and we are sure to complet
• 化简2x-6x-2÷（5x-2-x-2）的结果（）A．-2x+3B．2x+3C．2x-115D．2x-65-(x-2)2-数学
• I’m calling to enquire about the position_______ in yesterday’s China Daily.A．advertisedB．to be adv
• Please hand on the papers to those ________ at the back of the classroom.A．seatingB．satC．seatedD．si
• 天津市奥林匹克中心体育场—“水滴”位于天津市西南部的奥林匹克中心内，某校九年级学生由距“水滴”10千米的学校出发前往参观，一部分同学骑自行车先走，过了20分钟后，其余同学-八年级数学
• 已知a+b+c=0且abc≠0，求1a2-b2-c2+1b2-a2-c2+1c2-a2-b2的值．-数学
• ________ for a whole night, we still couldn't agree on when to start and where to go for the h
• The monument was built in honor of the explorer who was believed ________ the big river.A．to have di
• After chatting on QQ a long time, Mary looked up, ________ that it was 11：00 pm, long past her usua
• 请你先将式子2008aa2-2a+1÷(1+1a-1)化简，然后从1，2，3中选择一个数作为a的值代入其中求值．-数学
• 计算：(aa-2-aa+2)÷4aa-2．-数学
• a是不为1的有理数，我们把11-a称为a的差倒数，如：2的差倒数是11-2=-1，-1的差倒数是11-(-1)=12．已知a1=3，a2是a1的差倒数，a3是a2的差倒数，a4是a3的差倒数，…，以此
• 先化简，再求值：x2+xyx2-2xy-3y2•3y-xx-y+(x-1+y-1)÷(x-1-y-1)，其中x=2，y=-1．-数学
• A、B两地相距1350km，两辆汽车从A开往B地，大汽车比小汽车晚到30min，已知小汽车与大汽车的速度之比为5：3，求两车的速度，设大汽车的速度为3xkm/h，小汽车的速度为5xkm/h，所-八年级
• At the age of 29，Dave was a worker，________ in a small apartment near Boston and ________ what to do
• 先化简，再求值（1）-a2+4b2-4b2-a2+4ab，其中a=34，b=-32．（2）(2a-a2)(a2+4a+3)(a2+a)(a2-5a+6)，其中a=4．-数学
• 已知ab=2，求a2-4ab+3b2a2-8ab+7b2的值．-数学
• —What in the world put you in a really bad mood?—________ in the traffic for hours.A．StuckB．Being st
• I'm just getting out of the city for a few days ________ some space and clear my head.A．gottenB
• 某市从今年1月1日起调整居民用天燃气价格，每立方米天燃气价格上涨25%，小颖家去年12月份的燃气费是96元，今年小颖家将天燃气热水器换成了太阳能热水器，5月份的用气量比去年-八年级数学
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• 今年我市遇到百年一遇的大早，全市人民齐心协力积极抗旱，某校师生也活动起来捐款打井抗旱，已知第一天捐款4800元，第二天捐款6000元，第二天捐款人数比第一天捐款人数多50人-八年级数学
• 本市将进入汛期，部分路面积水比较严重．为了改善这一状况，市政公司计划将一段路的排水工程承包给甲、乙两工程队来施工．公司研究发现有不同施工方案：如果工程由甲、乙两队合-八年级数学
• 城北区在一项市政工程招标时，接到甲、乙两个工程队的投标书，每施工一天，需付甲工程队工程款1.5万元，付乙工程队1.1万元，工程领导小组根据甲、乙两队的投标书测算，可有-八年级数学
• 已知a、b、c是有理数，且a+b+c=0，abc是负数，则b+c|a|+a+c|b|+a+b|c|的值是______．-数学
• ________ by strong snowstorms, the area faced severe water and electricity shortage.A．StruckB．Havin