Nylon ______________ in the 1930s
A. invented
B. was invented
C. is invented
D. has been invented
Đáp án: B
Giải thích: in the 1930s là mốc thời gian đã qua nên câuchia quá khứ. Nylon không thể tự làm ra nó nên ta chia bị động.
Dịch: Nylon được làm vào những năm 30.
I’m ______ in teaching profession because I love working with children.
My father is the __________ of my family and my mother is the homemaker.
We often get up early in order to get __________ for the new working day.
My mother taught me how to _________ the transplanting when I was six.
After working hard for hours, the farmers sat down and ___________ a short rest.
Despite _________ burden, the single mother tried to raise her son by herself.