问题

This morning I kept on about this question.
A:think
B:thought
C:to think
D:thinking;
B:thought
C:to think
D:thinking;
正确答案是:
同类题型
It’s so careless of you to make a spelling mistake again.–Sorry. I couldn’t remember .
____ walk is expected to last all day, sobring ____ packed lunch.
While large numbers of residents in this area ___theA/H1N1 flu, very few suffered death.
It’s very kind _______ you to take the sick boy to thehospital.
Often he________sit for hours doing nothing at all when he was in low spirits. [ ]