Bài 1: Điền các đơn thức thích hợp vào ô trống để được đẳng thức đúng:
a)... - 2x2 = -7x2
b)... + ... + ... = x5
Bài 2: Tính giá trị biểu thức: xy3 + 5xy3 + (-7)xy3 tại x = 2; y = -1
Bài 3: Tính tổng rồi tính giá trị của tổng tại x = 1; y = -1
x2016y2016 + 5x2016y2016 - 3x2016y2016
Mong các bạn làm nhanh mình đang cần gấp
I. Choose A, B, C, or D to complete each of the following sentences.
1. Would you mind my_______?
A. smoking
B. smoke
C. smokes
D. smoked
2. I_______ to see you at the meeting. Why didn’t you come?
A. waited
B. expected
C. thought
D. looked
3. All of us were_______ that he came first. He hasn’t been working hard so far.
A. surprising
B. to surprise
C. to be surprised
D. surprised
4. Where is Janet? – She’s out. She said she_______ back soon.
A. is
B. will be
C. would be
D. came
5. Several people were hurt in the accident but only one_______ to the hospital.
A. has taken
B. was taken
C. was taking
D. are taking
6. The policeman explained to us_______ to get to the airport.
A. how
B. how can we
C. how we can
D. how can
7. I telephoned the station to make_______ of the time of the train.
A. true
B. real
C. right
D. sure
8. The college got some money by selling one of its_______ old pictures.
A. helpful
B. usual
C. valuable
D. useful
9. – “Pass me that pen, please!” – “______________.”
A. Here you are
B. No, it isn’t
C. It doesn’t matter
D. Yes, please
10. He_______ in the cafe when she came in.
A. sat
B. has sat
C. has been sitting
D. was sitting
11. It was raining_______ we cancelled the trip to Mount Faber.
A. although
B. so
C. because
D. but
12. How far is it from Ha Noi to Hoa Binh? – It_______ about two hours by bus.
A. takes
B. goes
C. needs
D. wants
13. Everybody was there, including_______ Mr. and Mrs. Smith.
A. with
B. of
C. ___
D. in
14. She hasn’t written to me_______.
A. any longer
B. never
C. already
D. yet
15. Surely David’s not going to drive_______ he?
A. does
B. is
C. isn’t
D. will
II. Match a verb in A with a phrase in B to have a complete phrase.
|
A 0. to drink 1. to go 2. to look 3. to live 4. to provide 5. to watch 6. to fix 7. to have 8. to prefer 9. to need 10. to arrive |
B sample 0. k a. in an urban area b. more money c. the news d. a meeting e. at the station at 5.30 f. for suitable jobs in the city g. the countryside to the city h. facilities for the people i. the computer j. to the countryside in the weekend k. a cup of tea |
III. Supply the correct forms of the word in each of the parentheses.
1. Some of the (village)_________ have lived here all their lives.
2. The room still has many of its (origin)_________ features.
3. He doesn’t know the (mean)_________ of the word.
4. They tried their best to avoid (get)_________ into traffic jams at rush hours.
5. She had her hair (wash)_________ and styled.
6. It’s only a short trip. We (be)_________ back in an hour.
7. He spends most of his free time (play)_________ computer games
8. We produce cheaper goods than our (compete)_________ do.
9. He has been (separate)_________ from his wife for a year.
10. His father is a (special)_________ in Vietnamese history.
IV. Find the word which fits the definition. The first has been done for you.
1. You could keep books on it: ___bookshelf__ 1. You could keep plates in it: _______________
2. You keep your clothes in it: _______________ 3. You can see yourself in it: _______________
3. You get washed in it: _______________ 5. You bite the food with them: _______________
V. Choose ONE appropriate question in the box to each paragraph below.
1. How do industry and transport cause pollution?
2. How can I help?
3. What is the pollution?
4. How can industry help?
5. What cause pollution?
6. What about air pollution?
A. ___ Pollution is the poisoning of the land, sea and air.
B. ___ Mainly industry and transport. If you go to any city, you will see too many factories, too many cars with notenough people in them, and not enough public transport.
C. ___ Factories and vehicles produce waste which goes into the air and rivers and spreads all over the land. Poisons in the waste build up over the years and harm trees, plants, animals, and people.
D. ___ Waste gases build up in the air, and dissolve into raindrops, forming a weak acid. This "acid rain" can fall far away from the country which produced it, killing trees in forests and fish in lakes and rivers.
E. ___ If companies clean their waste gases before releasing them into the atmosphere, there'll be much less air pollution and no acid rain. But this can be expensive and it needs all the world's companies to do it.
F. ___ Cars pollute the atmosphere. Walk, cycle and use public transport as much as possible. Only use your car when you really need to, and use unleaded petrol if you can - lead is one of the most dangerous ingredients in petrol. Join us, and help us to campaign for cleaner air for everybody.
VI. Fill in the blanks with one suitable word. The first letter has been provided:
Every December millions of Christmas cards go through the post. There are pictures of stars and snow or Christmas (1) t_______. In these days it is hard to think of Christmas (2) w______ Christmas cards. Yet little over a hundred and fifty years ago there were (3) n_______ at all. Here is just one story of the way in which they started.
Some boys of those days who were at boarding schools had to write a special piece of English at Christmas (4) t_______. This was sent to their (5) p_______ so that they could see how the boys' work was during the year.
Young people like to make little (6) d_______ on the paper when they write letters or poems. These boys were the (7) s_______. They used to draw little pictures all (8) r_______ the writing. Sometimes they coloured them, and after a time the pictures became more (9) i_______ than the writing. These were the (10) f_______ Christmas cards.
Question 1: Rewrite sentences as directed.
1. Why don’t you take that English course?
If......................................................
2. You forgot to turn off the TV last night, didn’t you?
You didn’t...................................?
3. Despite his age, Mr. Thanh runs five kilometres every morning.
Even...............................................
4. He didn’t finish his work until the bell rang.
Not until.......................................
5. When he is asked about his past, he hates it.
He hates........................................
6. Without Tom’s help, Bill couldn’t have finished the work.
If it...................................................
7. I cleaned the floor then I went to bed.
After..............................................................
8. “It’s time you went to bed” they said.
They urged us………….............................
9. The robbers made the bank manager hand over the money.
The bank manager..................................
10. She hasn’t been to Ho Chi Minh City for three years.
The last........................................................
1. Tính nhanh
a) 8154-(674+8154)+(-98+674)
b) -25-21+25-72+49.25
c) \(\frac{1}{3.4}+\frac{1}{4.5}+\frac{1}{5.6}+\frac{1}{6.7}+\frac{1}{7.8}+\frac{1}{8.9}+\frac{1}{9.10}\)
2. Bỏ dấu ngoặc, thu gọn biểu thức
a) A=(-a+b-c)-(-a-b-c)
b) B=(2a+b)-3b)+(a-3c)-(3a+2c)
Mong các bạn làm nhanh mk đag cần gấp
1. When Carol called last night I (watched/was watching/have watched/did watch )my favorite TV show.
2. I (was working/worked/have been working/had been working) for this company for more than thirty years and I (have intendedintend/will intend/was intending) to stay here until I retire.
3. Sharon loves to travel. She (is going/goes/will go/has been going) abroad almost every summer. Next year she plans to go to Peru.
4. Thomas is an author who (was writing/has written/wrote/has been writing) since he was a child. Altogether he (has been writing/will be writingwas writinghas written seven novels and three collections of short stories.
5. We were late because we (had/have had/have/will have) some car problems. By the time we got to the train Susan (is waiting/had been waiting/was waiting/will have been waiting) for us for more than two hours.
6. Every day I (have woken/woke/wake/am waking) up at six, eat breakfast at seven and leave for work at eight. However, this morning I got up at 6:30, skipped breakfast and left for work late because I forgot to set the alarm.
7. Right now Jim(has preparedis preparing/did prepareprepares) dinner and Sandra(brings/isbringing/will bring/was bringing) the children to bed. Last night at this time they (were doing/did/have been doing/have done) the same thing.
8. By this time next summer you (will be completing/will have completed/will have been completing/will complete) your studies and found a job. I, on the other hand, (will not have accomplished/have not accomplished/will not being accomplished/will not accomplish) anything. I will still be studying and you (will have worked/will work/will have been working/will be working) in some new high paying job.
9. The students are usually taught by Mr. Bingham. However, this week, they (are teaching/are taughtare being taught/will have taught )by the assistant teacher.
10. Bob (was/has been/is/had been) on the phone for over an hour. I wonder when he’s finished.
11. Mary always (will be taking/will take/is taking/takes) the children to football training at this time.
12. While we (waited/were waiting/have waited/had been waiting) for the bus we (had seen/saw/were seeing/have seen) two children flashing by with their roller skates.
13. When we finally got to the village we (have travelled/had been travelling/have been travelling/were travelling) for over five hours. We were exhausted.