摘要： I carefully poured the liquid into the water, my classmates anxiously beside me to see what would happen. A. stood B. standing C. to stand D. were standing
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—Oh, you have made the same mistake again.
—________ . How ________ I was!
[ ]
A．So I have, careless
B．So have I, careless
C．So I have, careful
D．So have I, careful
I ____good marks in the maths exam. If only I____ careful enough.
A. can have got, was B. could have got, had been
C must have got, were D should have got, would be
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