第1个回答 2010-03-17
He is studying at school .
He is studying in school .本回答被提问者采纳
第2个回答 2010-03-17
现在时 He is studying at/in school.
一般时 He studies at/in school.
过去时 He studied at/in school.
第3个回答 2010-03-17
He studies in school.
Where in school, he learns.
第4个回答 2010-03-17
He is studying at school