since

for

for

since

since

for

since

since

for

for

since

1, went

2, has gone

3, finished

4, finished

5, went

6, have gone

7, has lived

8, lived

9, drank

10, drank

1. went

2. has gone

3. finished

4. finished

5. went

6. have gone

7. has lived

8. lived

9. drank

10. drank

Mình ko biết có đúng ko nên có sai thì bạn sửa đi nha!

for + khoảng thời gian

since + mốc thời gian

1 for

2 for

3 since

4 for

5 since

6 for

7 for

8 for

9 since

10 for

#otpGiaLinhw/AnhThuwmaireallll:3

1. It has been raining for lunchtime.

2. My boss will go away for the next ten days.

3. I'm staying in England since a year.

4. She has lived in London since 1985.

Please hurry up! We have been waiting for an hour.

6. I have known her for January.

Nam's father has worked in this company since 20 years.

8. Have you learned English for a long time?

9. I haven't seen Tom since we left school.

10. The house is very dirty. We haven't cleaned it for years.

11. My sister has been a student since two years.

12. We've lived here since 1990.

13. I haven't seen Linh for my birthday party.

14. She has been away since a year.

15.We've already waited for five days.

16. They haven't had any rain for very long time.

17. That buildings has been there since the 19th century.

18. I have known them for many years.

19. They have only been there for a few minutes.

20. My brother works for a company called FPT. He has worked for them since he graduated from.

It has been raining since lunchtime.

Since là câu trả lời đúng!

a1) \(34.315=\text{10710}\)

b1) \(88:88=1\)

a2) \(3^4.3^{15}=3^{4+15}=3^{19}\)

b2) \(8^8:8^8=8^{8-8}=8^0=1\)

a1) 34 . 315 = 10710

b1) 88 : 88 = 1
a2) 3⁴ . 3¹⁵ =  3¹⁹
b2) 8⁸ : 8⁸ = 8⁰ = 1

a₁) \(34.315=10710\) 

b₁) \(88:88=1\) 

a₂) \(3^4.3^{15}=3^{19}\) 

b₂) \(8^8:8^8=1\)

I.Fill in the blank with for / since ( Điền vào khoản trống với since hoặc for)

1. My father hasn’t met my uncle …since…………. last month.

2. Nam has done that exercise ……for……………. three hours.

3. She has lived in London ………since…………. 1985.

4. We have not eaten in that restaurant ……for……. two weeks.

II. Give the correct form of the verb. ( cho dạng đúng của động từ trong ngoặc)

1. Lan (teach ) ……studied……………English three years ago.

2. We (never/ see)………………have never seen……….. her since last week.

3. I ( study) ………………have studied……………… English since 1990.

4. The earth (go) ……………goes…………… around the sun.

5. He (work)......................has worked.........................for that company for ten years.

II. Sentence transformation ( chuyển đổi câu)

1.They started to collect stamps three years ago.

® They have ………collected stamps for 3 years………………………………………………………..………….

2. We knew each other when we were students.

® We have…………known each other since we were students…………………………………………………..……………….

3. I last saw her three months ago.

® I haven’t………seen her for 3 months……………………………………………

1 for 

2 since

3 for

4 for

5 since

6 for

7 since

8 for

9 since

10 for

1, for

2, since

3, for

4, for

5, since

6, for

7, since

8, for

9, since

10, for

1, for 

2, since

3, for

4, for

5, since

6, for

7, since

8, for

9, since

10, for

Chúc bạn học tốt ^^ !!

 Góc ngoài của tam giác là góc kề với góc trong của tam giác đó.

=> Đ

=>Đ

Sai nha bạn vì góc ngoài phải là góc kề bù với góc trong mới đúng