Tiếng anh

1 No, they can't

2 The words it refers to the statue

3 To show the friendship between the two nation

4 The date July 4th 1776 was written on the tablet

15 B

16 A

Câu 3

1 A

2 B

3 D

4 C

IV

1 was wearing

2 has already seen

3 to reduce

4 playing

V

1 innovations

2 careless

3 endless

4 connect

1 A

2 B

3 C

4 C

1 A

2 A

3 A

4 C

1. Solar, wind, hydro, biomass, geothermal energy.
2. From sunlight and heat.
3. Turn off lights, and use energy-efficient appliances.
4. Clean energy, reduce emissions, control floods.

I

1 the smallest

2 the hottest

3 the worst

4 the largest

5 the widest

6 the nicest

7 the longest

8 the fewest

9 the shortest

10 the best

II

1 It's the cheapest restaurant in town

2 It was the happiest time in my life

3 He's the smartest student in the class

4 Summer is the hottest season 

5 It was the worst day of my life

1 B

2 C

3 A

4 A

5 B

6 D

7 B

8 D

9 C

10 C

2 It is exciting to see the football match at the National stadium than any other one

3 There is no need to spare any time for those who want to live on others

4 We spend an hour a day reviewing all necessary knowledge for the coming exam

5 Their father got home so early that their mother couldn't prepare so much food for dinner

6 She spends so much money on clothes though she can't earn as much as she need

Converting cubic kilometers to cubic centimeters:

1 km3=(1×105 cm)3=1×1015 cm31 km3=(1×105 cm)3=1×1015 cm3

100 km3=100×1015=1×1017 cm3100 km3=100×1015=1×1017 cm3

Calculations:

0+17=0+1=10+17=0+1=1231+92=23+81=104231+92=23+81=1049818×983=9818+3=98219818×983=9818+3=9821

Percentages and division:

100/102=50/51100/102=50/511/2021/202 remains as is.100%+192%−87%+1002=100%+192%−87%+1002%=1007%100%+192%−87%+1002=100%+192%−87%+1002%=1007%9182%+19%+10293%=9182%+19%+10293%=19594%9182%+19%+10293%=9182%+19%+10293%=19594%

More arithmetic:

(9−10)+10−2=−1+10−2=7(9−10)+10−2=−1+10−2=778/2−(10293−93193)=39−82900=−8286178/2−(10293−93193)=39−82900=−82861

So, summarizing:

100 km3=1×1017 cm3100 km3=1×1017 cm30+17=10+17=1231+92=104231+92=1049818×983=98219818×983=9821100/102:1/202=50/51:1/202100/102:1/202=50/51:1/202100%+192%−87%+1002=1007%100%+192%−87%+1002=1007%9182%+19%+10293=19594%9182%+19%+10293=19594%(9−10)+10−2=7(9−10)+10−2=778:2−(10293−93193)=−8286178:2−(10293−93193)=−82861Viết linh tinh +=)