5x=10.5 x=2.5 2. 3x-17 3.4x 3.4x+x a-2 2+a
更多的变数1.Now it\'s your turn to perform a play.
2.Cooked meat is more delicious1.27x4y6*9x2y4-7xy2=243x6y10-7xy2
3.-(2012+2)(2012-2)=-2012 +4=-（2000+12） +4=-4000000-48000-144+4=-4048140
4．堂堂正正1.look1.Machines are made by them in that factory.
2.This song is liked by everybody.
3.The stamps aren\'t showed to me by him.
4.Rice are growed by people in the west of Japan.
5.Tom is often helped by him when Tom is in trouble.
6.Are many buildings built by the workers
7.Are glasses sometimes broken by Kate
8.Is a letter always sent to Mr Hu by you
9.What are often told to boys to do by the teachers
10.How many desks are bought by them every term
11.That kind of shoes was sold by them in this shop last week
12.A story was told to us by Cranny last night
13.The dictionary wasn\'t given to me yesterday
14.Anything wasn\'t bought by him before he left .
15.Was the blackboard cleaned by him just now
16.When was supper cooked by her yesterday
17.Where were they made by her
18.Whose ruler was borrowed by you
19.The young tree must be tied to the stich by us.
20.The bike can\'t be ment by them in that shop.
21.Her baby should be took care of by you.
22.It may be took back home by you .
23.May the baby be looked after by me at home
24.Must our exercise-books be handed in by us now
25.Can this radio be ment by you here1.in 2.in1.Never frown1.4NH3+5O2=4NO+6H2O达到化学平衡时若增加容器体积1.a quarter
3.Because.the girl love apple(just kidding1.表达物理世界特征的所有（可测量的）无量纲参数原则上是否都可以推算
4.forbid 5.peel 6.oven
1.How much coke does Danny drink every day?
2.Betty gets little rest.
3.What does your sister have for breakfast?
1.I had an amusing experience last year.After I had left a small village in the south of France
1.Nancy plans to buy some maks for the Hallowmas.
2.His parents will water the flowers.
3.Where will you play the piano?
4.Helen is good at playing basketball.
arrive at / have a picnic / go for hiking / participate in singing competition / watching the show / write to me / ask for the way / make a snowman / dress up / get somebody out of the way / be good at / jump as far as he does / a happy summer vacation
1.The Internet in our life
Internet plays a very important role in everybody\'s life
3.apply 4.suit 5.rub
1.at auction 拍卖;
sell sth by auction：拍卖某物
eg.I shall sell my house by auction.我将拍卖我的房子.
In 2008 the top ten carpets sold at auction ranged from
1.The new package of our products is well-liked by our customers.
2.As none of the related letter of credits are received