I my homework while my mother was reading a book last night.
#40089
A
did
B
do
C
was doing
D
were doing
推荐题目
—Where __________ you find your ticket?—I __________it on the ground.
#36395
A
did, found
B
do, found
C
were, find
D
will, find
The world _____ . Things never stay the same.
#38620
A
changes
B
is changing
C
was changing
D
will change
People _________ rivers for transportation since the beginning of history.
#36687
A
used
B
have used
C
use
D
had used