I REGRETTED I WASTED A LOT OF TIME ... SUCH SILLY THINGS.A. DOB. M...

42. - 3500 CAU TRAC NGHIEM ON TAP AV THCS

3500 CAU TRAC NGHIEM ON TAP AV THCS

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42. I regretted I wasted a lot of time ... such silly things.

a. do

b. making

c. make

d. doing

 d