Thomas Alva Edison didn’t “invent” the light bulb, but rather he ______ a 50 –year –old idea, which is not well –known.
#81506
A
improved upon
B
take down
C
put up
D
break away
推荐题目
You can ___ any new words in the dictionary when you come across them.
#81008
A
look up
B
look through
C
look after
D
look for
Look at the pride on Tom’s face. He _____to have been praised by the manager just now.
#66525
A
seemed
B
seems
C
had seemed
D
is seeming
It took the scientists seven days to________Takla Makan________“the sea of death”.
#83047
A
climb;calling
B
through;called
C
across;naming
D
cross;named