by planting more trees ,we can ________ the number of greenhouse gases in the air.A .bring B.bring down C.go up D .go down尽快!

英语阅读理解开头是Farmers can produce more by planting several different crops in the same field...英语阅读理解开头是Farmers can produce more by planting several different crops in the same field ,要经典试题答案 planting by planting more trees ,we can ________ the number of greenhouse gases in the air.A .bring B.bring down C.go up D .go down尽快! More and more trees need ___in the world.A.planting B.to plant C.be planting D.be planted We can save our earth_____more trees.A.to plant B.by planting C.by plant D.to planting 英语翻译In 1620,about half the USA was covered by forests． Today the forests have almost gone． A lot of good land has gone with them,leaving only sand． China doesn't want to copy the USA's example． We're planting more and more trees． We 英语翻译In 1620，about half the USA was covered by forests.Today the forests have almost gone.A lot of good land has gone with them，leaving only sand.China doesn't want to copy the USA's example.We're planting more and more trees.We've built t In 1620,about half the U.S.A.was covered by forests.Today the forests have almost gone.A lot of good land has gone with them,leaving only sand.China doesn’t want to copy the U.S.A.’s example.We’re planting more and more trees.We’ve built the more by accident than Planting trees can help to make our e----clearer and more beautiful首字母填空. planting more trees is very important ___ people1.to 2.in 3.for 4.of planting trees can makes our country much greener为什么不用more greener 列句：In order to make our city green ,many more trees need planting.为什么? More than tow hunderd students are planting trees on the mountain.改为同义句 Solo tre Tre 是什么意思 tre丶霜 The young pioneers are planting trees by the river 变成被动语态