________ is where he gets all his money from. 
#69169
A
What I can’t understand it
B
That I can’t understand
C
What I can’t understand
D
Which I can’t understand it
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—Do you know when he        back tomorrow?—Sorry, I don’t know. When he        back, I will tell you.
#40992
A
comes; comes
B
comes; will come
C
will come; comes
D
will come; will come
I have bought 2 ballpens, _______ writes well.
#70187
A
both of which
B
none of which
C
neither of which
D
neither of them
“Is ______ you want to say?” asked the teacher.
#70462
A
this
B
that
C
all that
D
that all