It was not until 1920 regular radio broadcast began.
#71629
A
while
B
which
C
that
D
since
推荐题目
The girl is singing an English song in the next room is Tom’s sister.
#67223
A
whom
B
which
C
whose
D
who
(2013·江西九校一模)A lot of lovers chose to get married on Dec. 12, 2012, ________ the date, the month and the year match.
#67291
A
that
B
on which
C
in which
D
which
--- Would you tell me ___ you want your tea, with sugar or milk?--- Sugar, please.
#72012
A
whether
B
where
C
what
D
how
Wang Fang ,for ____a correct way will help communicate __others in a foreign country .
#72973
A
who
B
whose
C
whom
D
which