It’s about time _____ on something.
A. I’d decide
B. I decided
C. I decide
D. I’m deciding
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The dictionary I bought yesterday _____ me ten dollars.
A. is cost
B. cost
C. was cost
D. have been cost
Einstein has ever said “Politics ____ much more difficult than physics.”
A. has
B. have
C. is
D. are
It’s necessary that _____ them to give us a hand.
A. we asked
B. we ask
C. we will ask
D. we asking
That was not the first time he _____ us. I think it is high time we _____ strong actions against him.
A. betrayed, take
B. had betrayed, took
C. has betrayed, took
D. has betrayed, take