---Would you mind my opening the window?
---________________.
| A．Of course, open it | B．Certainly, do please |
| C．No, don’t do it | D．Not at all |
We should tell hunters _______tigers.
| A．don’t kill | B．not kill |
| C．killing | D．not to kill |
Most of us will spend most time _____lessons.
| A．study | B．to study |
| C．studying | D．studied |
My brother spent all morning_____ soccer with his classmates.
| A．plays | B．to play |
| C．playing | D．played |
When we went into the park, we saw someone _____ Chinese Kungfu.
| A．plays | B．played |
| C．to play | D．playing |
Lisa used to ________the bus to go to school，but now she is used to ________there．
| A．take；walk |
| B．taking；walking |
| C．take；walking |
| D．taking；walk |