IN THAT AGE OF COMPUTERS, IT IS DIFFERENT TO IMAGINE HOW TEDIOUS T...

34. - DE THI THU HAY CHON LOC DE THI THU TANH CO D AN
DE THI THU HAY CHON LOC DE THI THU TANH CO D AN
34. In that age of computers, it is different to imagine how tedious the work of accountants and clerks must have been in the past. A. that age B. it is C. the D. have been