The number of visitors _______ smaller and smaller because of the worse environment here.
| A．become | B．are becoming |
| C．is becoming | D．have become |
The number of visitors _______ smaller and smaller because of the worse environment here.
| A．become | B．are becoming |
| C．is becoming | D．have become |
试题篮
()
粤公网安备 44130202000953号
