On Saturdays, students are very proud to be on the street to guide passers-by to obey traffic rules.
#5159
A
characters
B
volunteers
C
operators
D
graduates
推荐题目
Niagara Fall is a great tourist ________, drawing millions of visitors every year.
#5804
A
attention
B
attraction
C
appointment
D
arrangement
The _________ on his face was kind of strange, when I told him the news.
#6425
A
appearance
B
looking
C
expression
D
description
A landing on Mars is within the _____ of current physical theory.
#6916
A
scheme
B
scope
C
scrap
D
scale