Trong mặt phẳng tọa độ Oxy cho đường thẳng có d :2x-y+1=0 ảnh d' của d qua phép quay tâm O góc quay 45° là ?

Viết bài văn : Em hãy tả lại một người lm công tác phòng chống dịch bệnh covid-19 mà em biết

1. "If you aren't so strict, the children won't be afraid of you", the woman said to her husband.
2."If you understand him, he will trust you," I said to her.
3." If I were a millionaire, I could help a lot of poor children," said the man.
4."If you envied me, you would be unhappy," the girl said to her brother.

Hãy trình bày các bước để in các trang 1,2,3,4,5,6,7 của tệp văn bản có ko ít hơn 20 trang

Phân biệt các dung dịch mất nhãn sau
a. Dd KCl, NaBr, KI, NaF bằng một thuốc thử.
b. Dd KBr, NaCl, Nal, KF, HCI.

Chuyển sang bị động
1. How many books did they borrow?
2. Are you interested in the book I gave you yesterday?
3.When did they do this work?
4.Did he give you the book he bought yesterday?
5.How many pages are you going to read this evening?

Change the following sentences from the active to the passive voice.
1. How many books did they borrow?
2. Are you interested in the book I gave you yesterday?
3. When did they do this work?
4. Did he give you the book he bought yesterday?
5.How many pages are you going to read this evening?

Điền a/an/the/X/some
1.I like___music very much
2.This is___last time I do you___favour for___while
3.I never like____talkative people
4.My sister lives in____Thailand___ near___Pataya
5._____President of the United States is elected every four years
6.Liz lives in____small village in___ country

Chủ động sang bị động
1.Don't let them see you.
2.Has she told you how to operate the machine?

1.They're talking about money. Perhaps Harry owes the other man some money.
2.No, I'm sure it isn't Miss Appleby. It's two men's voices. (CAN'T)
3.Perhaps he's having a party. (MIGHT)
4.I'm sure Harry's at least sixty. (MUST)

1.First he went to the booking office and bought a ticket . Then he (get on) the rain
2.When she arrived at the bus stop there was no one there .The bus(go) already
3.Just after he came out of the stadium he reached for his wallet .It(disappear)
4.The jury decided he was guilty of the crime .The judge(send) him to prison for it
5.He got off his bike after crossing the mountains .It(take) him two days

1.When Mr.Google(come) to the party this afternoon , he (bring) along some children
2.What (happen)when they arrives ?
3.At 9.00 last night . Mrs.Green (wash) the dishes while the children (play) game
4.When we (have) dinner last night,the lights (go) out

The elderly's immune system will be weakened if_____with the virus
A.infection B.infecting C.are infected D.infected

Once_____, the scheme will become a big success
A.funded B.funding C.is funded D.is funds
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