问题
I ______ a flu when I was on a spring outing with myclassmates.
A:Notcompleting
B:looked worried and turned to Su Dai for help
C:asked a large enemy force to bear down upon the border
D:brought up
B:looked worried and turned to Su Dai for help
C:asked a large enemy force to bear down upon the border
D:brought up
正确答案是：
