2:1-0.75 = 0.2540/0.25 =160 people

Two. 1.2500 * (1-0.18) = 2050 yuan.

2.2050/(1-0.18) = 2500 yuan.

Three. 1.2458 * (1-0.62) = 931billion dollars.

Four. 36/( 1-0.52)=75 people

Five. 6300/( 1-0.02 1)~ 6435km

English

One. 1 . am； 2. Yes; 3.are4.are5. yes; 6. Yes

Two. 1 . lives； 2. eat; 3. yes; 4. plants; 5. production; 6. play; 7. Chef; 8. Singing and dancing; 9. watch; 10 . reads； 1 1.go, gone; 12.do, visit; 13 . sweep； ; Find, find.

Three. 1 . was； 2. Yes; 3. reading, reading; 4. used to be, went; 5. do, do, do; 6. manufacturing; 7. plants, plants; Did you buy it?

Be sure to give points, it's very hard ~ ~ ~ ~ ~ o(> ﹏<；; )o