Recently much more emphasis has been put developing the students’ creativity.A. ontoB.

问题补充：

Recently, much more emphasis has been put developing the students’ creativity.

A. onto

B. in

C. over

D. on

答案：

A. onto

B. in

C. over

(答案→)D. on

解析：考查介词。put emphasis on把重点放在；着重于；强调，根据句意选D。