第1个回答 2011-04-19
When is the good time to clean up your room?
第2个回答 2011-04-19
When would you like me to do you room sir?
第3个回答 2011-04-19
When is it convenient for me to clean your room?
或
When is it convenient to clean up your room?
When is it convenient for cleaning up?
第4个回答 2011-04-19
I'd like to know When I can clean up your room without disturbing you.