The mother didn’t know _____to blame for the broken glass as it happened while she was out.
#64777
A
who
B
which
C
they
D
that
推荐题目
Look! the ground is wet. It must have rained last night, _______?
#64817
A
hasn’t it
B
didn’t it
C
mustn’t it
D
hadn’t it
Why not ____ help when you were in trouble?
#60106
A
you ask for
B
ask for
C
asking for
D
to ask
”_________” ‘Yes ,P-E-N,pen.’ 
#59836
A
What’s this?
B
Is this your pen?
C
Can you spell it ,please?
D
What’s your name ,please?