问题补充:
9. frightened us the electricity was suddenly cut off, which threw all of us into the dark.
A. It was; that
B. What was; most was that
C. It ; most what
D. What; most was that
答案:
A. It was; that
B. What was; most was that
C. It ; most what
(答案→)D. What; most was that
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