---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
I _______ these mistakes down in my notebook next time.
#38118
A
write
B
will write
C
writes
D
wrote
I ____ back my hometown for a couple of years. I miss it a lot. 
#36934
A
have gone
B
haven’t gone
C
have been
D
hasn’t been
Mr. Green          his lessons when I went into his office.
#36608
A
prepares
B
prepared
C
is preparing
D
was preparing
I won’t go to see the movie tonight, because I          my ticket.
#36734
A
lose
B
have lost
C
will lost
D
didn’t lose
My father _______ at eight o’clock yesterday evening.     
#40211
A
atched TV      C. is watching TV
B
as watching TV D. watches TV