おしいれに ( )を しまいました。
A.くるま
B.ねこ
C.ふとん
D.やね
参考答案:C
—What do you think of Ann?
—Ann is so careful that she always goes over her exercises to ______ there are no mistakes.
A.look for
B.make sure
C.find out
D.think about
判断气管导管误入食管最确切有效的方法是呼气末CO2曲线消失。