正确形式(要原因)
1>Twenty minutes ______(be) not enough for me to do so much work.
2>To say something ______(be) one thing;to do it ____(be) another.
3>Nobody but Ann and Billy ____(be) in our classroom yesterdat.
4>Whether he will go there with us _____(be)not important
5>If anything dangerous _______(happen),you can find them easily.
6>Is this the only way for the student _______(learn)?
=---选择.
7>The United Nations ______(be)founded in 1945
A,is B.are C.was D.are
谢谢.