Một số câu sau đây không đúng.Hãy đánh dấu [tick] vào những câu đúng và sửa lại những câu sai!
1:The farmers enjoy to drink tea after every meal.
2:The teacher spent three hours to prepare for the lesson.
3:The storm prevented the plane from talking off.
4:They decided traveling around the United States by car.
5:I can't stand people asking me questions all the time.
6:Seila seems having some difficult problems
7:I'm expecting to receive some money from my family
8:Did the teacher promise giving you a make up test?
9:After the meeting,someone suggested to go for a cup of coffee.
10:They finished painting the walls when it was nearly dark.
Complete each sentence by using the correct form of the following verbs.Use each verbs only once.
[ Talk / Play / join / do / swim / hit ]
1:My husband can't stand..................the washing up.
2:He gave up.............professional football at the age of 38.
3:.................is a good form of exercise.
4:My brother is very keen on.............the school team.
5:The taxi driver only just avoided............the old man.
6:He kept on............although nobody was listening to him .
[ Study / paint / not stay / play / invite / pass]
7:We decided.............until the end of the film.
8:Would you like..........chess with me?
9:Our teacher wants us.........harder for the examination.
10:It was a difficult exam,but she managed................it.
11:Peter promised...............the door and windows for me.
12:Don't forget............Lan to the party.
Make sentences based on the given words.
1:Our teacher/ sometimes/ get/ angry/ us/ because/ we/ not do/ homework
2:Never/ they/ go/ class/ on time.
3:The workers/ go/ work/ 6 a.m/ every day.
4:seldom/ it/ rain/ summer /here
5:sometimes/ he/ misunderstand/ me/ but/ it /not matter
6:he/ go/ market/ twice a week
7:she/ usually/ afaid/ dogs/ but/ she /like /cats
8:how often/you /go /dacing /club/summer?
9:I /often/ go/ there/ three times/ week/ summer.
10:the children/always/fond/sweets/such/chocolate/cakes
1:Past Continuous or Simple?Supply the correct form of the verbs.
1)The doorbell (ring) while I (have) lunch.
2)we (have)an accident when we (come) back from holiday.
3)when I looked out of the window,I (realise) that it(rain).
4)He (meet) his old friend when he(be) in Hanoi
5)I (stop) at a garage because the car(run) badly.
6)I suddenly (think) of you while I (wash up) -7)She (go) to sleep while I (tell) her about my holidays----8)when I (look) up,water (come) through the celing.
1:Nguyên tử khối của oxi = 15,999.Tính khối lượng của một nguyên tử oxi ra kg?
2:Khối lượng các nguyên tử H,C,Mg lần lượt là:mH=1,67.10^-24g mC=1,99.10^-23g mMg=4.10^-23g.Tính khối lượng mol nguyên tử của mỗi nguyên tử đó?
3:Đường kính nguyên tử gấp 10000 lần đường kính hạt nhân.Tìm đường kính nguyên tử giả sử bán kính hạt nhân là 4cm?
(Mình cần gấp nha!Cảm ơn trước!!!!!)