As we all know ,Columbus America and Edison light bulbs.
#53582
A
discovered ; invented
B
invented ; discovered
C
discovered ; discovered
D
invented ; invented
推荐题目
—I’m sorry. There was too much traffic on the road.—Don’t be late again. The meeting for 15 minutes.
#58826
A
has begun
B
has stopped
C
has been on
D
has finished
—Your school things are here and there. Will you please ?—OK, I’ll do it right away.
#59026
A
give them away
B
fix them up
C
hand them out
D
put them away