Thomas Alva Edison didn’t “invent” the light bulb (灯泡), but rather he ______ a 50 –year –old idea, which is not well –known. 
#84032
A
improved upon
B
take down
C
put up
D
break away
推荐题目
The whole book he wrote_____ three parts, it’s mainly about Ming Dynasty.
#78084
A
consists in
B
makes up
C
consists of
D
is consisted of
When I passed the entrance examination, my family _______ me ____ my success.
#66242
A
celebrated; on
B
congratulated; on
C
celebrated; to
D
congratulated; to
Mary is going on a diet .  as she has put on _______recently.
#65686
A
weights
B
weight
C
a weight
D
the weight