David, get up early, ________then you’ll catch the early bus. 
#37508
A
but
B
and
C
after
D
or
推荐题目
It’s getting warmer and warmer, and _____ are turning green.
#36122
A
tree leaf
B
trees leafs
C
trees leaves
D
tree leaves
—Our country is becoming _______.—Yes. We all love it.
#43284
A
stronger and stronger
B
more and more strong
C
the strong; the strong
D
strongest and strongest