For hundreds Of years,scientists have been trying to answer what things have an effect on people’速求此文翻译!please!

for hundreds of years People plant hundreds of trees every year 改为被动语态 shanghai-----(be)a small town hundreds of year ago. Hundreds of students send me e-mail each year asking for advice about education.请问 asking for 是做什么成份? less than( )lived there two( )ago.A.hundred of people,hundreds years B.hundreds of peoples,hundred years C.hundreds of people,hundred years D.hundreds of people,hundreds year About _____ trees are cut down every year.A.hundreds.B.hundreds of.C.a hundred.D.hundred of. Hundreds of thousands of books are published each year.同义句改写___ ___ hundreds of thousands of books published each year. I won't believe the 4-year-old boy can read____English words until I test him.A)five hundred B)five hundreds C)five hundreds of D)hundreds Every year,hundreds of thousands of people in the world die from smoring related disease. plant_____ trees on the mountain every year.A.two hundred of B.hundreds of we've bought [ ]desks for the children there,and[ ] these children are new.A;several hundreds of,two hundreds ofB;many hundreds of,two hundred ofC;several hundred,two hundreds ofD;hundreds of,two hundred必须有理由 Less than()lived there two()ago Ahundred of people,hundreds years B hundred of people,hundredyearsC hundrens of people,hundredyears Dhundreds of people,hundreds year hundreds of thousands of hundreds of thousands of shanghai-----(be)a small town hundreds of year ago.now it-----(become)a large city hundred ,hundreds,hundred of,hundreds of... hundred ,hundreds,hundred of,hundreds of... hundreds of time / hundreds of times