. When he was young, he used to ________
题型:选择题
问题:
.
When he was young, he used to __________ hard at his lessons.
A.devote to working
B.devote himself to work
C.be devoted to work
D.be devoted to working
.
When he was young, he used to __________ hard at his lessons.
A.devote to working
B.devote himself to work
C.be devoted to work
D.be devoted to working