People _________ rivers for transportation since the beginning of history.
#36687
A
used
B
have used
C
use
D
had used
推荐题目
--- It’s difficult for the village children to cross the river for school.--- I think a bridge _______ over the river.
#41858
A
should be built
B
is being built
C
has been built
D
was built
Mark Twain ______ school and began to work at the age of twelve.
#39038
A
left
B
leaves
C
will leave
D
leave
Chen Bing went to Australia in 2010. He ___________ there for 3 years.
#38264
A
lives
B
lived
C
is living
D
has lived
—Where is Jack? —He _________ basketball on the playground.
#38025
A
plays
B
is playing
C
is going to play
D
play