Ta có:

f) (√72−3√24−5√8)√2+4√27A=(72−324−58)2+427

→=(6√2−6√6−10√2)√2+12√3→A=(62−66−102)2+123

→=(−4√2−6√6)√2+12√3→A=(−42−66)2+123

→=−4⋅2−6√6⋅√2+12√3→A=−4⋅2−66⋅2+123

→=−8−6√12+12√3→A=−8−612+123

→=−8−6⋅2√3+12√3→A=−8−6⋅23+123

→=−8−12√3+12√3→A=−8−123+123

→=−8

1. These toys are _______.

A. you B. your C. yours

2. I love ______ grandparents.

A. mine B. me C. my

3. _____ children are young.

A. They’re B. They C. Their

4. That CD is _____.

A. mine B. my C. me

5. These clothes aren’t ______.

A. our B. ours C. We

6. Your bike is a lot faster than __________________.

A. my B. its C. mine

7. The book is _________________ but you’re welcome to read it.

A. mine B. yours C. my

8. _____________ dog is always so friendly

A. There B. They C. Their

9. My sister gets along well with _____________.

A. yours B. you C. your

10. I looked everywhere for my keys but I could only find _____________.

A. your B. yours C. them

1.d

2.a

3.c

4.b

5.a

mình thiếu câu này nha

I) ____my_____sister is Mary

1. (I) ___My______ sister is ten years old

2. (He) ___His______ eyes are blue

3. (They) ___Their______ car is red

4. (We) _Our________ dog is white

5. (You) ___Your______ bicycles are old

6. (She) ___Her______ house is big

7. (He) __His_______ father is doctor

Ex1: Change the sentences to the passive voice

1. The porter is carrying our luggage.

________________________________

2. The hairdresser is trimming my hair.

________________________________

3. The crane is lifting the slabs of concrete.

________________________________

4. Several young girls are selling artificial flowers near the pier.

________________________________

5. The trainer is hitting the elephant.

________________________________

6. Sam is sweeping the floor.

_________________________________

7. The killer whale is eating the squid.

_________________________________

Bài 1: Gạch dưới trạng ngữ trong câu và cho biết trạng ngữ ấy chỉ gì?

a.Người tứ xứ đổ về như nước chảy để xem mặt , xem tài ông Cản Ngũ .

(Trạng ngữ chỉ..........)

b.Đàn cá hồi gặp thác phải nghỉ lấy lại sức để sáng mai vượt sóng.

(Trạng ngữ chỉ.........)

c..Sáng hôm ấy để kịp đi xem hội , Sẻ Non đã dậy rât sớm.

(Trạng ngữ chỉ.......)

mình sửa lại

1.Quick! The bus ..left ...for Hanoi

2.I know. He ...come... Tina to the station every summer

3.We ....knew.. the answer to that last week

4.I ...saw....her last Tuesday.

5.This strain .....stopped at London an hour ago

6 Does she ...take... the car to the garage everyday? 

mình thiếu Does ở trước she nhé