Tom shut everybody out of the study ___ he could prepare for the coming exam.
Whatever he does, once he sets up a goal, he would start pursuing it without _______.
The author of the article believes that it is the test system, ______ teachers, that is responsible for the heavy burden of the middle school students nowadays.
Mr. Smith is ______ to attend the party to be held next Wednesday.
He would rather ______ his mother the truth.
His blood type is so rare (稀有) that it’s difficult to find any type to _______ his.