冷冻肉之保存温度()。
A.-18℃以下
B.0℃~7℃
C.10℃~15℃
D.25℃以上
参考答案:A
I’m afraid by the time you arrive this afternoon I_______ a lesson then.
A.had
B.are having
C.have had
D.will be having
Jim and Mike____football now.[ ]
A. playing
B. play
C. plays
D. are playing