should,oughtto的用法,填空用should填空：1.We___(drink)abouteightcupsofwateraday.2.John___(take)arestafterhoursofhardwork.用oughtto填空：1.We___(keep)ourhomecleanandtidy.2.You___(not/tell)liestoyourparents.我

　　should,oughtto的用法,填空

　　用should填空：

　　1.We___(drink)abouteightcupsofwateraday.

　　2.John___(take)arestafterhoursofhardwork.

　　用oughtto填空：

　　1.We___(keep)ourhomecleanandtidy.

　　2.You___(not/tell)liestoyourparents.

　　我想要空中的答案,而且我想知道,首词We等这些复数词语后的should,ooughtto后括号里的词是不是也要变呢?

　　You这些就不用should,oughtto后的词就不用变吗?