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H24
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TB
31 tháng 12 2021 lúc 22:21

1. Tom isn’t here. He has just gone out for a few minutes.

2. She said to me that she was selling that car the following day.

3. Please don’t make so much noise. I am studying.

4. They suggest taking a taxi instead of walking.

5. Did you see Nam last Sunday? Oh, no I haven't seen him for a long time.

6. My brother has worked for this company from 1990 to 2000.

7. I was having lunch when he came.

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LA
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DA
13 tháng 11 2018 lúc 7:19

Đáp án: B

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LP
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NT
24 tháng 10 2021 lúc 21:34

\(\left\{{}\begin{matrix}\dfrac{1}{x}+\dfrac{1}{y}=\dfrac{5}{36}\\\dfrac{4}{x}+\dfrac{3}{y}=\dfrac{1}{2}\end{matrix}\right.\Leftrightarrow\left\{{}\begin{matrix}\dfrac{4}{x}+\dfrac{4}{y}=\dfrac{5}{9}\\\dfrac{4}{x}+\dfrac{3}{y}=\dfrac{1}{2}\end{matrix}\right.\)

\(\Leftrightarrow\left\{{}\begin{matrix}\dfrac{1}{y}=\dfrac{1}{18}\\\dfrac{1}{x}=\dfrac{1}{36}-\dfrac{1}{18}=-\dfrac{1}{36}\end{matrix}\right.\Leftrightarrow\left\{{}\begin{matrix}y=18\\x=-36\end{matrix}\right.\)

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MT
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NT
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NH
11 tháng 8 2023 lúc 22:57

1 I just prepared the table a few minutes ago.

2 We haven't gotten ready for the party yet.

3She did the washing up an hour ago.

4Did you visit an orphanage last year?

5 Uncle Tom already took me to school today.

6 They have not been to Bangkok in the past.

7 Haven't you put on your jacket since the morning?

8 I haven't played chess since last year.

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GL
11 tháng 8 2023 lúc 22:58

1. I have just prepared the table.

2. We haven't gotten ready for the party yet.

3. She did the washing up an hour ago.

4. Did you visit an orphanage last year?

5. Uncle Tom has already taken me to school today. 

6. They have never been to Bangkok in the past.

7. Didn't you put on your jacket in the morning?

8. I haven't play the chess since last year.

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PN
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TA
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TH
25 tháng 8 2020 lúc 19:43

 Put in been or gone.

1. Jim is on holiday. he has GONE to Italy
2.Hello ! I've just
BEEN to the shops. I've bought lots of things
3.Alice isn't here at the moment. She's
GONE to the shop to get a newspaper
4.Tom has
GONE out. He'll be back in about an hour
5. 'Are you going to the bank ? "No, I've already
BEEN to the bank'

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DT
25 tháng 8 2020 lúc 19:45

2. been 

3. gone

4. gone

5. been

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TI
25 tháng 8 2020 lúc 21:56

 Put in been or gone.

1. Jim is on holiday. He's gone to Italy.

2. Hello! I've just been  to the shops. I've bought lots of things.

3. Alice isn't here at the moment. She's gone to the shop to get a newspaper.

4. Tom has. gone out. He'll be back in about an hour.

5. 'Are you going to the bank?' 'No, I've already been to the bank.'

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DD
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H24
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DH
8 tháng 1 2023 lúc 10:59

2 been

3 gone

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H24
8 tháng 1 2023 lúc 10:59

2been

3gone

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H24
8 tháng 1 2023 lúc 11:00

2 gone

3 been

Has gone: đi(đã về)

Has been: Đi(chưa về)

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