If the machine makes a mistake -- ____ rarely happens -- it gives a warning in the form of a red light.
#77412
A
that
B
which
C
as
D
what
推荐题目
Saving money is ________ we must do.
#78191
A
what that
B
anything that
C
something that
D
something which
The reason ____he was late was ____he had taken a wrong bus.
#75683
A
why; because
B
for; because
C
why; that
D
for; that
He sat on his bed looking at his brother, _______ had his arms crossed and looked angry.
#77258
A
that
B
whom
C
who
D
which
The film started to get boring, at _____ point I left the cinema accompanied by my twin sister.
#77394
A
what
B
that
C
the
D
which