题文
The chemistry teacher asked the students ________ more attention _________the lab clean.
| A．to pay ,to keep | B．to paying ,to keeping |
| C．to pay , to keeping | D．paying ,keeping |
The chemistry teacher asked the students ________ more attention _________the lab clean.
| A．to pay ,to keep | B．to paying ,to keeping |
| C．to pay , to keeping | D．paying ,keeping |
试题篮
()
粤公网安备 44130202000953号
