YOU HAVEN’T CALLED ON YOUR AUNT FOR A LONG TIME, ...

25. - 3500 CAU TRAC NGHIEM ON TAP AV THCS

3500 CAU TRAC NGHIEM ON TAP AV THCS

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25. You haven’t called on your aunt for a long time, ...?

a. have you

b. do you

c. did you

d. have you not

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