Chỉ ra câu được đánh dấu ngữ pháp và có ý nghĩa : 1. A. According to schedule, the taxi picks us up at the airport at 9 p.m B. According to schedule, the taxi will pick us up at the airport at 9 p.m C. Hurry up! The taxi is picking us up at the airport at 9 p.m 2. A. I am leaving now. The last train will leave the station at 6 p.m B. Be quick! The last train leaver the station at 6 p.m C. I leave now. The last train leaves the station 6 p.m