At first the experiment went on well, but ______ problems we hadn’t expected turned up later and it failed.
| A．outstanding |
| B．curious |
| C．powerful |
| D．various |
推荐试卷
At first the experiment went on well, but ______ problems we hadn’t expected turned up later and it failed.
| A．outstanding |
| B．curious |
| C．powerful |
| D．various |
试题篮
()
粤公网安备 44130202000953号
