Tìm x €Z:

a. (x-3)(x-5)<0

b. 2x² - 3 =29

tìm x€Z :

a) -12 (x -5)+7 (3- x) = 5

b) (x - 2)(x + 4) = 0

c) (x - 2)(x + 15) = 0

d) (7-x)(x + 19) = 0

Tìm x € Z

a. |x - 2| = 3

b. |x - 3| - 7 = 13

c. 72 - 3 . | x + 1| =9

d. 17 - (43 - |x|) = 45

e. 3|x - 1| - 5 = 7

Khoanh ABC or D

Before you travel to the US, you .......find out what documents you need. British people do not ........ to get a visa, but there are different rules for ........nationalities . ......... For example, you don't need to show that you have enough money....you. ....... there is one rule you can be sure about: everyone ...... to show their passport . The roads in New York are very busy, but don't worry, you can get around cheaply and easily by subway. Remember that you are not allowed to smoke.........public transport or in shops. And don't forget that you must tip taxi drivers and waiters. New York is not the most dangerous city in the U.S., but you really ...... walk along empty streets at night. And it is ..... to travel around in groups .

1. A.must B.would C.can D.could

2. A. Ought B.have C.should D.used

3. A.other B.many C.different D.some

4. A.on B.in C.of D.with

5. A.but B.then C.now D.and

6.A.could B.must C.has D.should

7. A.in B.on C.at D.by

8.A.shouldn't B.wouldn't C.couldn't D.might not

9. A. Safe B.safer C.safest D.more safe

Điền một giới tùe thích hơph

1. Nick used to go to the library from time to time to look..... articles........the subject he was very fond...

2. This job would be impossible .....the help of a computer.

3. At first, my E homework was full.....mistakes.

4. Please write ....ink; it is hard to read if you write ....... pencil.

viết dạng đúng của từ trong ngoặc :

1.Mai understand me ......... DEPTH

2. We have a lot of ......... in learning E . DIFFICULT

3. She sent her best wishes for my future ....... HAPPINESS

4. Exercises........your health . STRONG

5. She spent her ......... in the country. CHILD

6. How much is the ....... ticket from London to Paris ? FLY

7. The president made a ......... tonight. SPEAK

8. Clair is very ....... She knows a lot of people. SOCIETY

Cho dạng đúng của từ loại

It's an interesting__________ (play)