正确形式(要原因)
1>Twentyminutes______(be)notenoughformetodosomuchwork.
2>Tosaysomething______(be)onething;todoit____(be)another.
3>NobodybutAnnandBilly____(be)inourclassroomyesterdat.
4>Whetherhewillgotherewithus_____(be)notimportant
5>Ifanythingdangerous_______(happen),youcanfindthemeasily.
6>Isthistheonlywayforthestudent_______(learn)?
=---选择.
7>TheUnitedNations______(be)foundedin1945
A,isB.areC.wasD.are
谢谢.