Mary was ______ in the exam.
A. a first
B. first
C. the first
D. one
查看答案
All ______ worries him is his father"s objection to it.
either, neither, no one, none I don"t agree to ______ of the two proposals.
The teacher explained it again and again so as to make ______ understood.
A. herself
B. yourself
C. ourselves
D. myself