He made another wonderful discovery, ______ of great importance to science.
| A．which I think is | B．which I think it is |
| C．which I think it | D．I think which is |
相关试题
_________．Only from 8:00 am to 4:00 pm.
| A．That’s all right | B．Yes，of course |
| C．Sorry，I’m not sure | D．Sorry，I’m afraid not． |
相关知识点
推荐套卷
粤公网安备 44130202000953号