Heavy smog blankets Beijing． ,city authorities start using its new smog warning system．
#25216
A
In turn
B
In time
C
In response
D
In return
推荐题目
The light will be thrown ______ the cause of cancer by research that is now in progress.
#27489
A
to
B
upon
C
in
D
for
Experts have been warning___of the health risks caused by passive smoking.
#28210
A
at a time
B
at one time
C
for some time
D
for the time
Jack is good, kind, hard-working and intelligent. _____, I can't speak too highly of him.
#29132
A
As a result
B
By the way
C
On the whole
D
In a word
Give them a hand this time and I am sure they will offer theirs ______ in the future.
#28629
A
by turns
B
in turn
C
at turn
D
in return