Only by _______ your attention _______ what you are learning can you learn it well.
#73386
A
concentrate; on
B
pay; on
C
concentrating; on
D
paying; on
推荐题目
How did it______ that humans speak so many different languages?
#83643
A
come out
B
come off
C
come about
D
come round
It is known to us all that the 11th national games emblem ________ many different meanings.
#81035
A
take on
B
put on
C
carry on
D
get on
Considering his health, I advise him to an hour or two each day to work out．
#71930
A
set about
B
set aside
C
set up
D
set off
What terrible news it was for her!She attempted to smile，but her voice her ．
#72236
A
turned；out
B
gave；away
C
broke；down
D
turned；down
The children remembered to ______ themselves at first, but things went out of control minutes later.
#70073
A
produce
B
behave
C
practice
D
enjoy