I. Complete the sentences with words / phrases from the box.

1. …. Rescue …….. workers have freed those who were trapped in flooded homes.

2. Much of the town was rebuilt after the massive ……………………. of the tornado.

3. People without homes will be provided with temporary ……………………….……

4. What can be done to protect people from environmental ………………….……?

5. Emergency teams are still clearing the ……………………… from the plane crash.

6. The government is sending …………………..…. to the flood victims.

II. Use the verbs in brackets in the correct form to complete the sentences.

1. The mudslide buried the whole village while people were still sleeping in their houses. ( bury)

2. Yesterday, a terrible storm ……………… the rural area of Ha Giang Province. ( strike)

3. Hundreds of buildings were completely destroyed when the earthquake ……… the city. ( shake)

4. We managed to run out of the house into the street before the walls …………… ( collapse)

5. The forest fire ………… for eight hours and some animals were badly injured or killed. ( rage)

6. Villagers rushed into public shelters as soon as the volcano …………………. ( erupt)

Giúp mik vs mn ơi!^^

I. Complete the sentences with words / phrases from the box.

1. …. Rescue …….. workers have freed those who were trapped in flooded homes.

2. Much of the town was rebuilt after the massive ……………………. of the tornado.

3. People without homes will be provided with temporary ……………………….……

4. What can be done to protect people from environmental ………………….……?

5. Emergency teams are still clearing the ……………………… from the plane crash.

6. The government is sending …………………..…. to the flood victims.

II. Use the verbs in brackets in the correct form to complete the sentences.

1. The mudslide buried the whole village while people were still sleeping in their houses. ( bury)

2. Yesterday, a terrible storm ……………… the rural area of Ha Giang Province. ( strike)

3. Hundreds of buildings were completely destroyed when the earthquake ……… the city. ( shake)

4. We managed to run out of the house into the street before the walls …………… ( collapse)

5. The forest fire ………… for eight hours and some animals were badly injured or killed. ( rage)

6. Villagers rushed into public shelters as soon as the volcano …………………. ( erupt)

Cho tam giác ABC vuông tại A, đường cao AH,tia phân giác góc B cắt AH tại E và cắt AC tại D . biết AB=6cm , AC=8cm.

a) Tính tỉ số DA/DC ?

b)Chứng minh :AB² =BH.BC.

Tính S_HBA

I. Complete the sentences with words / phrases from the box:

1. English is an ………………………. in countries like India, Malaysia and Singapore.

2. The USA, the United Kingdom and New Zealand are all ………………………...

3. In summer, children often take part in a local or international ……………………….

4. ……………… is in the mid-north of America.

5. Usually, people from different parts of a country speak their language with different …………...

6. Australians are ……………………… of English because they use it as their mother tongue.

2a78=2000+a.100+78=2078+100.a

2078 chia 17=122 dự 4

=> 100.a chia 17 phai du (17-4)=13

100.a-13 chia hết cho17

\(\frac{100a-13}{17}=85a+\frac{15a-13}{17}.\)

15a-13 chia hết cho 17 \(a=\frac{17k+13}{15}=k+\frac{2k+13}{15}\)

2k+13 chia het cho 15  \(k=\frac{15n-13}{2}=7n-6+\frac{n-1}{2}\)=>n=2t+1

=>a=17t+2

t=0=> a=2 

DS: 2278

rất hay cho mk cảm ơn

mi tích tau tau tích mi xong tau trả lời nka việt nam nói là làm

100:100x5=1x5=5