One way for students to prevent H7N9 flu virus is to open the windows of the classroom to allow the air to ________.
#13540
A
accumulate
B
circulate
C
illustrate
D
accelerate
推荐题目
From his________look，I could see that he didn’t believe what I said.
#10758
A
amazing
B
amaze
C
amazed
D
amazement
When Ben’s house was on fire last night, several neighbors rushed to his and put out the fire.
#11250
A
expectation
B
absence
C
assistance
D
requirement
Everybody in the village likes Jack because he is good at telling and________ jokes.
#13384
A
turning up
B
taking up
C
making up
D
showing up