Since the time humankind started gardening, we _____to make our environment more beautiful.
| A．try | B．have been trying |
| C．are trying | D．will try |
推荐试卷
Since the time humankind started gardening, we _____to make our environment more beautiful.
| A．try | B．have been trying |
| C．are trying | D．will try |
试题篮
()
粤公网安备 44130202000953号
