问题
选择题
She spent as much time as she could _____ over her lessons.
A.go
B.to go
C.going
D.went
答案
答案:C
句子的主干是spend time(in) doing sth. .
She spent as much time as she could _____ over her lessons.
A.go
B.to go
C.going
D.went
答案:C
句子的主干是spend time(in) doing sth. .