They didn't start work ___their teacher came back这个空只能填until么?能填while么?

They didn’t start until the rain stopped.它的not until 的强调句是怎样变的 They didn't start work ___their teacher came back这个空只能填until么?能填while么? they didn't tell me where they will go for their holiday. ?1.they didn't tell me where they will go for their holiday.2.they didn't tell me where they would go for their holiday.第一句和第二句只是will换成了would.为什么这里只能用wo they didn't start to work in the fields until the rain __(stop) 中间的空该填什么英文时态?谢谢 They didn’t start until the rain stopped.它的not until 的强调句是怎样变的did`n中的did不要了吗 they didn't know how they could do it.同义句they didn't know --------- --------- -----------it. they were ( )because they didn 't havethey were ( )because they didn 't have lunch They didn't c _____ their mind. they didn't go swimming___(too) They both didn't do their best. nobody knew it ,didn't they.改错 but they didn't notice rt The car won't start.为什么用 won't为什么不选didn't start?I have tried several times,but the car just won't start. They after running yesterday afternoon,didn't they?They 什么什么 after running yesterday afternoon，didn't they？ in england they don't start school at 8 He didn't know when he would start.(改为同义句） He didn't know （ ） （ ）（ ） I didn't know when I would start.(同意句)I didn't know when ______ _______. The train didn't start.It snowed beavily yesterday 合并为一句The train didn't start _____ _____ heavy snow.