Since the invention of the computer, people have saved a lot of time. → Since the computer .

Since the computer was invented, people have saved a lot of time.
Kiến thức về cấu trúc câu
Cấu trúc: Since + S + Vp2, S + V-ed/cột 3 + O
Tạm dịch: Kể từ khi máy tính được phát minh, mọi người đã tiết kiệm được rất nhiều thời gian.

Since the invention of the computer, people have saved a lot of time. → Since the computer _______________________________________________.

Since the invention of the computer, people have saved a lot of time.
→ Since the computer _______________________________________________.