Every possible means ____ to save the miners stuck in the mines.
A. have tried
B. have been tried
C. has been tried
D. has tried
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Not even one of the hundred students who took the test _________ passed.
A. has
B. have
C. is
D. are
I, not you, _____ in the wrong. Not I but he ______ been invited.
A. were; have
B. were; has
C. was; has
D. was; have
Neither May nor her parents ______ the resulat of the election, which greatly surprises me.
A. is knowing
B. knows
C. have known
D. has known
The price of the shoes _______ than before. I can't afford two pairs.
A. is more expensive
B. is much higher
C. are much higher
D. are much lower