What we need is a patient teacher, __________ who listens to us students.
--- ______ news? --- No. No news is ______ good news.
See what you have done! Don’t you have a ______ of right or wrong?
I got ______ bad toothache yesterday, which kept me awake ______ whole night.
Greenhouse phenomena would cause ______ rise in sea levels worldwide and change ______ weather on the earth.
He left ______ with my secretary that he would call again in the afternoon. He said he would keep ______.