—My Dear! I've just missed the lecture. —That's too bad.I'm sure you it if you had got up earlier.
We ______certain livings as birds not because they have long legs or short legs,but because they all havefeathers.
If no one ______ a coat with red buttons on it,I’ll have to keep it or send it to the Lost and Found.
The sports meet, originally due to be held last Friday, was finally _____ because of the bad weather.
—How about the book you are reading?—Good indeed. It ________many problems we have come across in our study.
A completely new situation will _________ when the examination system comes into existence.