Предмет: Математика, автор: чеширскийкот20

как решить 3 с поеснением пожалуйста

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Автор ответа: ashprints

89^2=(80+9)^2=6400+2*80*9+81=6400+1440+81=7921
второе сам делай

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1. Where___ your sister work?

a) does

b) do

c) is

d) are

2. You can turn the radio off. I ______to it.

a) am not listening

b) am listening

c) is not listening

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3. In this photo my sister ______ a white dress.

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b) wearing

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d) are wearing

4. A: What are you doing? B: – I_____ a text message to Sarah.

a) am sending

b) is sending

c) sends

d) sending

5. Where___ your sister work?

a) does

b) do

c) is

d) has

6. Anny: _____ do you get to college. Bob: On food.

a) how

b) when

c) what

d) where

7. What_______ you talking about?

a) are

b) have

c) does

d) do

8. What does he do?

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c) He learns languages

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a) does

b) was

c) were

d) do

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b) not understand

c) not understand

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a) do you

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c) you do

d) did you

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b) is playing

c) played

d) were playing

13. Choose the right variant.

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c) sensitive

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14. Write opposite adjective: talkative

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15. He only thinks about himself

a) selfish

b) quite

c) kind

d) sociable

16. Write opposite adjective: hard-working

a) lazy

b) safe

c) nice

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b) work

c) works

d) worked

18. My daughter hates ______ alone.

a) playing

b) played

c) plays

d) to playing

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a) getting up

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c) get to up

d) gets up

20. Susan likes ________ with her friends.

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c) go out

d )to go out

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