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【单选题】
John's parents work in the hospital. They _____ doctors. [ ]A.
all are
B.
are all
C.
are both
D.
both are
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【单选题】The vegetables didn’t taste very good. They ____ too long.
A.
had been cooked
B.
were cooked
C.
had cooked
D.
cooked
【单选题】The vegetables didn’t taste good. They ____ too long.
A.
had cooked
B.
cooked
C.
had been cooked
D.
were cooked
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