They planted trees last spring.下划线trees 3Q

They planted trees last spring.下划线trees 3Q What happened to the trees planted last spring?The trees_wel She planted some pear trees last spring.(被动语态) She planted some pear trees last spring.改成否定句 they planted trees last year (改为一般疑问句） At the end of last year ,they had planted 3,0000 trees（找错误） These trees were planted last year.变成否定句They weren't planted She planted some pear trees last spring改成被动语态是什么 we planted many trees in our school last spring 改为 被动 语态 Last spring,we planted many trees on my uncle`s f___. No trees ___ planted last year. I planted some fruit trees last year.