A．受教育者既是教育的主体，又是教育的客体B．受教育者是教育过程中“学”的主体C．教育者是教育过程中“教”的主……

多项选择题皮亚杰的认知发展阶段分为( )。

单项选择题I don't know the man over there. Could you tell me ().

A. what his name is
B. where does he come from
C. how old is he
D. what is his name

单项选择题Students taking the entrance exam are required to provide their students ()number.

A. identify
B. identifiable
C. identifiably
D. identification

单项选择题According to the travel Web site, many travelers () staying at the Reliant Hotel in Hanoi.

A. testify
B. conclude
C. recommend
D. disappoint

单项选择题Although subway fare was cheaper, Danielle chose to take a taxi to the concert hall () she would not be late.

A. so
B. or
C. but
D. and