--Hi, Vera, have you checked the account yet?--Certainly, I it five times even t
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--Hi, Vera, have you checked the account yet?
--Certainly, I _______ it five times even though you told me to do it twice.
A.checked
B.will have checked
C.have been checking
D.had checked
试题答案
A
“检查”这一动作发生在过去，且发生在从句动作told之后，因而用一般过去时。