The young _________ are loud.[ ]
A. man
B. men
C. woman
答案:B
顶烧炉火嘴火焰过长的处理方法是()。
A.开大一次风门
B.开大二次风门
C.关小一次风门
D.关小二次风门
—Look! I found a wallet in the classroom
—You should give it to its .He must be upset about losing it.
A.volunteer
B.nurse
C.passenger
D.owner