Question

thomas
.A.E ..1)........ 2,000 different materials in search of a proper filament for
the light ....2)....... . his assistant complained " all our work is
useless " edion replied ...3)....... " oh, we have come a long way
and have learned a lot

1) a) brought,
b) played,
c) tried,
d)
showed

2) a)
ballon
b) bulb,
c)
flash
d) glass

3) a) surprisingly
b) accidently, c)
perfectly d)
confidently

Answer 1

Menurut aku:
1) C. tried
2) B. bulb
3) D. confidently

maaf kalau salah :)