It is usually not quite cold in this area in March, but sometimes temperature________ be very low.
#85497
A
should
B
can
C
must
D
shall
推荐题目
Sometimes I wonder ______ that has made me feel differently from the others. 
#85192
A
how is it
B
what is it
C
how it is
D
what it is
        she is not so healthy           she used to be?
#84712
A
How it is that; as
B
Why is it that; as
C
Is it why; that
D
How is it that; what
Was it _____ he was training in the field _____ he got hurt?
#85442
A
that, when
B
where, that
C
that, where
D
when, that