It took them 30 minutes to go to work.
It took them 30 minutes to go to work.
=> They spent _____________________________________.
Đáp án đúng là: They spent 30 minutes going to work.
Giải thích: It takes + time + to V = S + spend + time + Ving
Dịch: Họ mất 30 phút để đi làm