They can't come here on Sunday.的过去时态是什么?

They can't come here on Sunday.的过去时态是什么? We hope they can come here.(改为同意句)We( )to come here.We hope they can come here.(改为同意句)We( )( )to come here. 超幼稚的英语BT题~~~翻译:他们再也不能到这儿来了They can't come here ___ ___. we hope they can come here.改为同义句we____ _____ to come here. （ ）can’t you come here?Are you busy 同义句转换:They can't come.They ____ ____ ____ come. they used to come here to play,()?反义疑问句 是填usedn't they 还是 didn't they Can you come here ,please? can.you.come.here?可以? She can't come here because she has much work to do.（同意句转换）She can't come here because she has --- --- work to do They won't be able to come here on time,I think.(改为复合句)?I ...(不限词数)...think they ...(不限词数)...be able to come here on time. 英语汉意They told him don't you ever come around here 英语改错:They don't believe that I have come here for nine hours. When will they come here ? I really don't know .(合并为一句)I really don't know when __ __ come here . You mustn't play on the crossing 和 You can come and sit here 的祈使句 maria can't come here,because she has to （ ）（ ） （ ）（ ）去看医生. We can't play here.A.Great B.Come hereC.Of course D.Why not She can't come here in a minute(改为肯定句）