We have been told that under no circumstances ___ the telephone in the office for personal affairs.
John may phone tonight,I don't want to go out ______ he phones.
He is always helping people without expecting anything ______.
I will mark ______ everything you say.It is helpful to the English learners.
—Believe me,all your efforts will ______ some day. —Thanks for your encouragement.
Some blood types are quite common,others are regionally______,and still others are rare everywhere.