How long can the dressing be kept？
A. For 2 days
B. For 3 days
C. For 4 days
D. For 5 days
查看答案
Some of the old people who inject flu vaccines experience serious side effects.
A. Y
B. N
C. NG
What else did he order？
A. Salad.
B. Potato soup.
Cream.
D. Ham.
Which of the following pie charts does the man refer to？
The best title for the passage would be ______.
A Smile
B. A Jailer
C. A Lucky Escape
D. Life in Jail
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