问题

If you _____ careful, you will have an accident. [ ]
A: don't
B: be
C: aren't
D: not be
B: be
C: aren't
D: not be
正确答案是:
同类题型
She told me the sun ______ in the east.
My sister doesn’t like fiuit, but I _.
________ is it from his home to school?—About 20 minutes’ walk.[ ]
Oh, Miss Wei. Your skirt looks nice. Is it new? — No, I it since three years ago.
That’s a nice mobile phone. —It is. My aunt _____ it for my last birthday.