Which of the following is the best title?
A. Keep Away from Sudan 1
B. No Sudan 1 Dye Links to the Country
C. How Sudan 1 Dye Got Its Name?
D. Pay Attention to the Food Safety
【B18】
A. by a smile
B. with a smile
C. by smile
D. with smile
【B17】
A. starting
B. to start
C. start
D. started
【B11】
A. filled out
B. took out
C. sent out
D. threw away