Nhìn thấy cọc B nhưng không nhìn được đến B là sao?

I. Make sentences as the examples.

Ex: How/ Son/ feel? (tired) - How does Son feel? – He feels tired.

1. How/ Lan/ feel? (hot)

How does Lan feel?

She feels hot.

2. How/ Nam and Quan/ feel? (cold)

How do Nam and Quan feel?

They feel cold.

3. How/ you/ feel? (thirsty)

How do you feel?

I am/feel thirsty.

4. How/ they/ feel? (hungry)

How do they feel?

They are/feel hungry.

5. How/ workers/ feel? (tired)

How do workers feel?

They are/feel tired.

VI. Find the odd one out:

1. a. cough b. weak c. headache d. sore throat

2. a. sunburn b. toothache c. earache d. unhealthy

3. a. sick b. temperature c. tired d. weak

4. a. flu b. stomachache c. cold d. fat

5. a. sleep b. happy c. live d. smile

6. a. feel b. healthy c. well d. tired

7. a. fat b. big c. matter d. small

8. a. fever b. dentist c. nurse d. doctor

VII. Find and correct the mistake:

1. Last week my family move for a new house.

Last week, my family moved to the/for a new house.

2. What’s the matter of you, Lan?

What's the matter with you,Lan?

3. Don’t stay up so early, it’s bad for your health.

Don't stay up (so) late, it's bad for your health.

4. He has strong white teeth because he brush his teeth regularly

He has strong white teeth because he brushes his teeth regularly.

5. She should goes to bed early.

She should go to bed early.

6. My father have a sore throat.

My father has a sore throat.

7. What didn’t Nam go to school yesterday?

Why didn't Nam go to school yesterday?

8. Where are you yesterday?

Where were you yesterday?

9. We are going to visited our teachers.

We are going to visit our teachers.

10. She can’t speak because she has an sore throat.

She can't speak because she has a sore throat.

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Này nè

Thầy đổi giải thưởng của em với bạn Mai đi ạ :)) Em đâu có online nhiều như bạn ấy đâu ạ :)

\(\left(x-7\right)\left(xy+1\right)=9=3.3=\left(-3\right).\left(-3\right)\)

Giả sử 1:

* \(\left(x-7\right)=3\Rightarrow x=10\)(nhận)

* \(\left(xy+1\right)=3\Rightarrow xy=2\Rightarrow y=\frac{1}{5}\)(loại)

Loại giả thiết 1 do y không nguyên.

Giả sử 2:

* \(\left(x-7\right)=-3\Rightarrow x=4\) (nhận)

* \(\left(xy+1\right)=-3\Rightarrow xy=-4\Rightarrow y=-1\)(nhận)

Vậy: x = 4 và y = -1