17. It is impossible for air passengers to take knives in their hand luggage. A.Air passengers can’t take knives in their hand luggage. B.Air passenge

17. It is impossible for air passengers to take knives in their hand luggage. A.Air passengers can’t take knives in their hand luggage. B.Air passengers don’t have to take knives in their hand luggage. C.Air passengers shouldn’t take knives in their hand luggage. D.Air passengers can take knives in their hand luggage. 18.The last time … Đọc tiếp