Although the teacher had told Bob the history of telephone, Bob didn’t know when ____.
#37382
A
it was invent
B
was it invented
C
it was invented
D
it invented
推荐题目
The child asked his mother _________ go out to play tennis.
#79196
A
that he could
B
if he could
C
if could he
D
that could he
—Do you know tomorrow? —David? Never! He hates outdoor activities．
#37475
A
whether David will go cycling with us
B
when will David go cycling with us
C
that David would go cycling with us
D
who David would go cycling with
—What did he say just now?—He asked me______________.
#38193
A
when my sister came back
B
when did my sister come back
C
when my sister will come back
D
when my sister comes back
To maintain a nice relationship, both sides are advised to focus on _______ they have in common.
#78852
A
what
B
that
C
which
D
where