What does Mr. Liu usually ___________when he is at school?
Dr Ma loves his job and he the lifestyle of a flying doctor.
This Math problem is too difficult. Can you show me_______, George?
My uncle_______ the club in 2010. He_______ the club for over 3 years.
Would you please give me_______ my English study?
James_______ to Hangzhou many times, so he knows every corner of it.