问题
选择题
The old scientist devoted most of his time ___________ the space science.[ ]
A. develop
B. to developing
C. to develop
D. developing
答案
答案：B
搜题请搜索小程序“爱下问搜题”
The old scientist devoted most of his time ___________ the space science.[ ]
A. develop
B. to developing
C. to develop
D. developing
答案：B
