Must...needn't
不明白的再问哟,请及时采纳,多谢 !追问 there were not_____roads and not _____traffic.(much/any)many; any roads 复数用 many 修饰表示“许多”not 否定句用anymy mother likes to have a barbecue.句中的 to have 换一个单词来表达having