nǐ / zhī / dào / jīn / tiān / xīng / qī / jǐ / ma / wǒ / men / shì / bú / shì / gāi / jiāo / bào / gào / le

你知道今天星期几吗？我们是不是该交报告了？

Do you know what day of the week it is? Isn't our report due?