________ have an internal clock that controls the beating of our heart, and the ________ of our breathing.
#11165
A
Human being; steps
B
Humans; pace
C
Human beings; steps
D
Man; pace
推荐题目
The school isn't the one I really wanted to go to，but I suppose I'll just have to ________ it.
#11525
A
make the best of
B
get away from
C
keep an eye on
D
catch up with
“Freeze, you guy! ________, and I’ll shoot you.” an old man with a gun in hand shouted at me.
#14309
A
If you go for one more step
B
Going for one more step
C
One more step
D
You going for one more step
The doctor told me to take the medicine_____.
#12998
A
every fourth hours
B
each fourth hour
C
each four hours
D
every four hours
We ________ have bought so much food now that Suzie won't be with us for dinner.(2012·江西)
#11441
A
may not
B
needn't
C
can't
D
mustn't
It is not difficult to ______ Mr. Huang from among a crowd because he is above average height.
#12150
A
leave out
B
pick out
C
run into
D
look into