mang trees have been planted by people themang trees have been planted by people these years改主动语态

mang trees have been planted by people themang trees have been planted by people these years改主动语态 How mang supermarkets have you been to?中文是什么? Litter-baskets have been placed under the trees汉语意思 In the picture,all the trees have been cut down.句子中为什么加been mang there far been many so in this trees have park 的连词成句 litter baskets have been placed under the trees为什么不用has a lot of trees have been planted 变一般疑问句(并回答) /变否定句 to make our city more beautifulA a lot of trees have been planted B it's necessary to plant a lot of trees C a lot of trees need planting D we have planted a lot of trees How mang ( )(study) do they ( )(have)? How mang months have twenty-eight days? how mang football do you have 改错 So far we ( ) about 1000 trees. a.planted b.have planted c.have been planted d.to plant说明原因 the child-with-his-parents trees for the whole four hours.A plants B have been planting C has been planting D has been planted选哪个?为什么 she's been late for mang times(改为一般疑问句) 中文翻译：Trees have always been important to humans who make good use of them in different ways. Over the last 200 years,over harf () the trees on Earth have been cut down,填介词. Many trees ___(plant) in our school yard these years.1.have been planted 2.are planted选哪个?为什么?