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—I felt it very difficult to carry on the work all by myself.
—I could have helped you, but you _____me to.
A.hadn’t askedB.didn’t askC.haven’t askedD.don’t ask
B

这题考查时态的用法:因为I could have helped you,是“过去本可以帮你(却没帮),后面的你没有叫我,是过去的事实。用过去时,选B。
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