这句话是不是这样改?the trees that were planted last year are growing

These trees were planted last year.变成否定句They weren't planted No trees ___ planted last year. I planted some fruit trees last year. The trees are growing Trees were being planted here this time last year.变过去进行时主动语态 问几道英语题!急!1（ ）these trees were planted last year? A.By Whom B ()trees were planted last year.用thousands of 还是 two thousand The trees are growing well.The teachers planted them tow yea the trees are growing well .the teachers planted them two ye we were delighted to find the trees planted a year before __ At the end of last year ,they had planted 3,0000 trees（找错误） they planted trees last year (改为一般疑问句）