I usually ______ sunglasses outside in the sun.
#52494
A
put on
B
putting on
C
wear
D
wearing
推荐题目
Why not ________ for help when you were in trouble?
#55780
A
you ask
B
ask
C
asking
D
to ask
As we all know ,Columbus          America and Edison         light bulbs.
#53582
A
discovered ; invented
B
invented ; discovered
C
discovered ; discovered
D
invented ; invented