---when _______the telephone________，do you know?---Yes．In 1876．
#39777
A
was，invented
B
are；invented
C
did；invent
D
had，invented
推荐题目
---Why won’t you go to the movie with me, Gina? ---Because I it twice.
#42165
A
see
B
have seen
C
saw
D
will see
- Has your friend completed his design? - Not yet. He ________ on it last night.
#36803
A
worked
B
has worked
C
is working
D
was working
--- Is Jason going to the party? --- I’m afraid not. He ________ to Hong Kong.
#42059
A
goes
B
went
C
has gone
D
was going