Cable TV began in 1948 in the USA, but it took 50 years ________ 66 percent of American households
had it.
| A．before | B．when | C．after | D．until |
相关知识点
推荐试卷
Cable TV began in 1948 in the USA, but it took 50 years ________ 66 percent of American households
had it.
| A．before | B．when | C．after | D．until |
试题篮
()
粤公网安备 44130202000953号
