第1个回答 2010-08-28
Do you often do at the weekend? I often play basketball.
第2个回答 2010-08-28
I often play basketball at weekend.
第3个回答 2010-08-28
What do you usually do on weekend?
I usually play basketball.
第4个回答 2010-08-28
What do you often do at the weekend?
I often play basketball at the weekend.