第1个回答 2014-02-22
He often asked us a lot of problems或He asks our many questions frequently.
第2个回答 2014-02-22
He always asks us a lot of questions.
第3个回答 2014-02-22
He often asks us lots of questions.
第4个回答 2014-02-22
He often ask ours so many qustians?