乘机旅客限量携带的含有易燃物质的生活用品有()。
A.打火机气
B.打火机
C.火机油
D.安全火柴
参考答案:B, D
—What did the teacher say just now?
—He asked us to come to school _____.
A. on time
B. at time
C. on the time
D. in the time