There is no doubt _____ 100 years ago animal testing was cruel but today
animals in experiments are very well taken care of.
| A．whether | B．that | C．where | D．which |
推荐试卷
There is no doubt _____ 100 years ago animal testing was cruel but today
animals in experiments are very well taken care of.
| A．whether | B．that | C．where | D．which |
试题篮
()
粤公网安备 44130202000953号
