Thinking that you know ______ in fact you don't is not a good idea.
A.what
B.that
C.when
D.which
— I haven’t seen Bob lately. ______
— As a matter of fact, he is ill.
A、Where is he?
B、Why?
C、How is he?
The machine can't be made perfect overnight; in fact, it should be improved ______.
A.one after another
B.by turn
C.right away
D.step by step
A.got stuck in
B.got stuck to
C.got stuck on
D.got stuck for
It doesn't alter the fact that he was the man ______ for the death of the little girl.
A.accounting
B.guilty
C.responsible
D.obliged
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