15000 bài tập tách từ đề thi thử môn Tiếng Anh có đáp án (Phần 1)

In that age of computers, it is difficult to imagine how tedious work of accountants and clerks must have been in the past. A. that age B. it is C. work D. have been

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In that age of computers, it is difficult to imagine how tedious work of accountants and clerks must have been in the past.

that age

it is

work

have been

Giải thích

Đáp án A

That age => that version