The World War II made ______ impossible for Einstein to go on with his research.
| A．him | B．this | C．it | D．that |
推荐试卷
The World War II made ______ impossible for Einstein to go on with his research.
| A．him | B．this | C．it | D．that |
试题篮
()
粤公网安备 44130202000953号
