Danny is ________ donuts now.[ ]
A. eating
B. eats
C. eat
答案:A
-_____do you go to the library?
-Once a week.
A.How long
B.How soon
C.How often
D.How many times
下列属于品质标志的有()。
A.人的性别
B.文化程度
C.人的年龄
D.工种
E.工人工资、工业产值