Some pre-school children go to a day care center, __________ they learn simple games and songs.
#74456
A
then
B
there
C
while
D
where
推荐题目
During the days ________, he worked as a servant at the Browns. 
#73785
A
followed
B
following
C
to follow
D
that followed
She wrote a month ago, ______ we’ve heard nothing. 
#73446
A
since when
B
before which
C
since that
D
after which
Mr Smith was so angry at all ____ Bill was doing ____ he walked out angrily.
#73161
A
that; what
B
that; that
C
which; which
D
what; that