Some scientists believe that it won’t be long _______ robots are widely used in all walks of life．
| A．since | B．after | C．before | D．until |
相关试题
第一部分：英语知识运用（共两节，满分45分） 
第一节：单项选择（共15小题，每小题1分，满分15分）
1. A bird in the hand is _______ two in the bush.
| A．worthy | B．worthwhile | C．worth | D．worth of |
45. With the rapid growth of population, the city______ in all directions in the past five years.
| A．has been spread | B．has spread | C． spread | D．had spread |
44. He ______ all his time and energy to his work．
| A．spent | B．cost | C．contributed | D．combined |
43. The Chinese people consider dragon as a ______ of China.
| A．sign | B．mark | C．character | D．Symbol |
______ this fact, French still has an impact on the English language.相关知识点
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