To understand the grammar of the sentence,you must break it______ into parts. 
#4913
A
down
B
up
C
off
D
out
推荐题目
It is illegal for a public official to ask people for money ____ favors to them.
#4649
A
in preference to
B
in place of
C
in agreement with
D
in exchange for
I didn’t get a_____in the list of contribution.
#5009
A
mentioned
B
mention
C
name
D
calling
Jenny nearly missed the flight______ doing too much shopping. 
#5027
A
as a result of
B
on top of
C
in front of
D
in need of
 _______was not ______she took off her dark glasses _______I recognized her.
#4623
A
It; when; before
B
It; until; that
C
That; after; that
D
This; when; after