It was not until 1920 regular radio broadcast began.
#71629
A
while
B
which
C
that
D
since
推荐题目
A good storyteller must be able to hold his listeners’curiosity ________he reaches the end of the story.
#74574
A
when
B
unless
C
after
D
until
In one's lifetime, if fortunate, one is likely to be blessed by the friendship of another person ________ existence can be a great inspiration.
#66758
A
whose
B
which
C
who
D
whom
He turned to Russia for help in the belief ______ the country would protect him.
#66924
A
what
B
whether
C
that
D
because
There aren’t many seats left for the concert; you had better make sure ____ two today.
#72141
A
getting
B
to have got
C
that you get
D
that you will get
Mr. Smith was so angry at all ________ Robert was doing _________ he walked out angrily.
#67672
A
that; what
B
that; that
C
which; which
D
what; that