When _______?
A.were computers used first
B. were computers first used
C.did computers first use
D. are computers first using
Giải bởi Vietjack
KEY: B
Giải thích: cậu bị động thời quá khứ đơn, trạng từ đặt trước Ved.
Dịch: Máy tính được sử dụng lần đầu tiên khi nào?
That machine is useless. It_______not been used for a long time
________ the internet is very popular, many older people do not know how to use it.
She made no ___________to her illness but only to her future plans.
.________ having the best qualifications among all the applicants, Justin was not offered the job.
Ms. Black and Ms. White are talking about Mr. Brown’s upcoming retirement.
Ms. Black: “Mr. Brown is going to retire next month.”
Ms. White: “ _______________”.
