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Nguyễn Quỳnh Như
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Linh Diệu
26 tháng 7 2017 lúc 8:11

III/ supply the correct word form

1. He is a famous (poetry)....poet...... because he has many good....poems......(poetry)

2. He is a (design).......designer... of this company

3. It is too (convenience).....inconvenient......... to call anyone at night

4. Flowers (symbol).....symbolize....... love

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My Dang
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Nguyễn Quỳnh Như
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_silverlining
28 tháng 7 2017 lúc 7:46

III/ supply the correct word form

1. Her clothes look very modern and (fashion)...fashionable....

2. Many designer took (inspire) ........inspiration.....from Vietnam's ethic minorities

3. What a (color)...colorful......T-shirt!

4. He always wears a (stripe)...striped....... shirt

5. She likes to wear (fade)..faded.......Jean cloth

6. In the 18th century, Jean cloth was made (complete)....completely.. from cotton

7. I don't like to wear (paint)..painted.........and (embroider)....embroidered....... jeans

8. They don't feel (constraint)...constrainted........... to wear uniforms

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Hoàng Nữ Phương Oanh
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Nguyen
5 tháng 5 2019 lúc 20:58

I.Fill in the blank with the correct form of words given

1. He always wears the striped shirts ( stripe )

2. In the 18 th Century, Jane cloth was made completely from cotton ( complete)

3. Wearing casual clothes makes students feel comfortable( comfort )

4. They have just introduced a new style of Jeans in the USA (introduction).

5. We have to improve all the schools in our city ( improvement )

6. Wearing uniform is compulsory in that school ( compel)

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Huỳnh Tấn Khải
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𝓓𝓾𝔂 𝓐𝓷𝓱
19 tháng 8 2021 lúc 10:46

PTHH: \(Al_2O_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2O\)

Ta có: \(\left\{{}\begin{matrix}m_{H_2SO_4}=588\cdot5\%=29,4\left(g\right)\Rightarrow n_{H_2SO_4}=\dfrac{29,4}{98}=0,3\left(mol\right)\\n_{Al_2O_3}=\dfrac{20,4}{102}=0,2\left(mol\right)\end{matrix}\right.\)

Xét tỉ lệ: \(\dfrac{0,2}{1}>\dfrac{0,3}{3}\) \(\Rightarrow\) Al2O3 còn dư

\(\Rightarrow n_{Al_2\left(SO_4\right)_3}=0,1\left(mol\right)=n_{Al_2O_3\left(dư\right)}\)

\(\Rightarrow C\%_{Al_2\left(SO_4\right)_3}=\dfrac{0,1\cdot342}{20,4+588-0,1\cdot102}\cdot100\%\approx5,72\%\)

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nguyễn thư
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An Nhiên
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nhi lê
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Nguyễn Hoàng Minh
21 tháng 10 2021 lúc 7:49

\(d,ĐK:x\ge1\\ PT\Leftrightarrow\sqrt{x-1}=2+\sqrt{x+1}\\ \Leftrightarrow x-1=2+x+1+4\sqrt{x+1}\\ \Leftrightarrow4\sqrt{x+1}=-4\Leftrightarrow x\in\varnothing\left(4\sqrt{x+1}\ge0\right)\\ g,ĐK:x\ge\dfrac{1}{2}\\ PT\Leftrightarrow x+\sqrt{2x-1}+x-\sqrt{2x-1}+2\sqrt{\left(x+\sqrt{2x-1}\right)\left(x-\sqrt{2x-1}\right)}=2\\ \Leftrightarrow2x+2\sqrt{x^2-2x+1}=2\\ \Leftrightarrow\sqrt{\left(x-1\right)^2}=\dfrac{2-2x}{2}=1-x\\ \Leftrightarrow\left|x-1\right|=1-x\\ \Leftrightarrow\left[{}\begin{matrix}x-1=1-x\left(x\ge1\right)\\x-1=x-1\left(x< 1\right)\end{matrix}\right.\Leftrightarrow\left[{}\begin{matrix}x=1\left(tm\right)\\x\in R\end{matrix}\right.\)

 

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Phạm Mạnh Kiên
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Hoaa
21 tháng 8 2021 lúc 8:57

I. Supply the correct verb form:

1. Where’s Mary? She (listen) ___is listening_______________ to a new CD in her room.

2. Don’t forget to take your umbrella with you today. You know it (be) ___is__________  the raining season now.

3. Jean always (learn) __learns________ English at this time every day but today she (not study) __isn't studying_____ at the moment.

4. What time ___does the meeting happen_________ (the meeting/ happen) tomorrow? I (not know) ________haven't known___________ it yet. I (wait) _______will wait__________ for the announcement.

5. Where ____have you lived___ (you/live) since you moved from your old house?

6. Look! The sun (rise) ____is rising______ over the ocean. This is the most amazing scene I (ever/ see) _____have ever seen_________.

7. He (speak) ____speaks_____ Japanese so well because He (come) _____comes______ from Japan.

8. _____Do you usually go___ (you/ usually/ go) for Christmas or ___Do you stay______ (you/stay) at home?

9. Look! Your friend (hold) ____is holding_______ some roses. They (look) _______look_____ lovely.

10. _______have u finished______ (you/ finish) your assignment yet? No, I ____haven't____________.

11. My father usually (walk) __walks________ to work but now he(drive) ___________is driving_______ his car.

13. My grandparents (bring) ___have brought_________ me up since I was very small.

14. How long _____has peter worked_______ (Peter/ work) in his firm?

16. I (just/ realize) ___have just realized____ that there are only four weeks to the end of them.

17. This is the second time I (be) _have been____ to London.

18. Now the children (not want) ___don't want____ to go to sleep. They (prefer) ____prefer_______ their mother to tell them bedtime stories.

20. Jim (cook) _____is _____ so tired now. He (work) _______has been working_________ non-stop since the morning

1. They (go) ___went __________ home after they (finish) _____had finished________ their work

2. The children (play) ____were playing_________ football when their mother (come) ____came_________ back

3. What (he /do) ____did he do_________ when he (be) _____waws________ young?

4. What (you/do) ____were u doing________when the phone (ring)______rang_____?

5. She (already, see) _________has already seen____ Dr. Rice. (she/ever/know)         ____Has she ever known_______him?

6. We (often/ come) ___often come__________ to the stadium, but  today we (watch)___are watching______the match at home.

7. He (sit) ______sits_______ in a café everyday although  he (not/like) ___doesn't like_______(drink) ____drinking___ coffee.

8. They (not eat) _____won't eat________ such kind of food next week.         

9. Many houses ( damage) ____were damaged__________ because of the storm last night.

10. After they (go) _____had gone________, I (sit) _____sat________ down and (rest) ______rested_______

11. Yesterday John (go) ___had gone__________ to the store before he (go) ____went_________ home

12. After taking a bath, he (go) _____went________ to bed

13. A bridge (build) ___was being built____________at this time 2 years ago.        

14. If she (work) ___works_____too , she will be tired . 

15. Would you like (hang out)___to hang______with me? What about (go) ___going_____ to the cinema.

16. Tom (see) _____saw________ a serious accident while he (stand) _____was standing________ at the bus stop

17. If John and I (not/get)_____didn't get______ to the theatre, they would get surprised.

18. English ( speak) ______is sopken_______ all around the world.

19. They (not/see)______haven't seen________ eachother since they (leave) __left_____school.

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Đỗ Thanh Hải
21 tháng 8 2021 lúc 8:59

Bạn lưu ý lần sau đăng ít một thôi nhé

1) is listening

2) will be (không chắc vì ngăn cách bởi the)

3) learn / isn't studying

4) will the meeting happen / haven't know / have waited ( hơi khó)

5) have you lived 

6) is rising / have ever seen

7) speaks / comes

8) Do you usually go / you stay

9)  is holding / are looking

10)  Have you finished /  am working???

11)  walk / is driving

12)  don't think / is sleeping 

13)  have brought

14)  has Peter worked

15)  always complain / is 

16) have just realized 

17) have been

18) aren't wanting /  prefer

19)  Have they wanted /  have watched

20) has been cooking / has been working

1. They (go) ______went_______ home after they (finish) _____had finished________ their work

2. The children (play) __________were playing___ football when their mother (come) _______came______ back

3. What (he /do) ______did he do_______ when he (be) ______was_______ young?

4. What (you/do) _______were you doing_____when the phone (ring)_______rang____?

5. She (already, see) ____has already seen_________ Dr. Rice. (she/ever/know)         ______Has she ever known_____him?

6. We (often/ come) ______often come_______ to the stadium, but  today we (watch)___are watching______the match at home.

7. He (sit) _______sits______ in a café everyday although  he (not/like) ___doesn't like_______(drink) _____drinking__ coffee.

8. They (not eat) ______won't eat_______ such kind of food next week.         

9. Many houses ( damage) _____were damaged_________ because of the storm last night.

10. After they (go) __________had gone___, I (sit) ______sat_______ down and (rest) _______rested______

11. Yesterday John (go) _____had gone________ to the store before he (go) ___went__________ home

12. After taking a bath, he (go) _______went______ to bed

13. A bridge (build) ________was being built________at this time 2 years ago.        

14. If she (work) ___works_____too , she will be tired . 

15. Would you like (hang out)___to hang out______with me? What about (go) _______going_ to the cinema.

16. Tom (see) _______saw______ a serious accident while he (stand) ___was standing__________ at the bus stop

17. If John and I (not/get)___didn't get________ to the theatre, they would get surprised.

18. English ( speak) ________is spoken_____ all around the world.

19. They (not/see)_________haven't seen_____ eachother since they (leave) ____left___school.

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