---Be careful! Your clothes will catch fire.  ---Thank you._______ so close to the fire.
#87970
A
I didn’t know I was
B
I don’t know I am
C
I hadn’t known I was
D
I don’t know I was
推荐题目
 —Why didn’t you attend the lecture yesterday?—I didn’t think that we _______ on Sundays.
#90145
A
should
B
ought to have
C
shouldn’t have
D
will have to
 The headmaster demanded all the teachers ______ in the office.
#86783
A
mustn’t smoke
B
did smoke
C
should smoke
D
not smoke