Only by ______ your attention ______ what you are learning can you learn it well.
#28490
A
focus；on
B
pay；on
C
focusing；on
D
paying；on
推荐题目
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
— Foreign trade has been developing very fast in Guangdong.— Yes. Guangdong is China’s largest province ___ foreign trade volume.
#29190
A
in terms of
B
in place of
C
in charge of
D
in favor of
To be ______ changing times you cannot have your body in the 21st century and your head back in the past.
#25794
A
in step with
B
in front of
C
together with
D
apart from