线路、变电站高处作业人员在杆塔上下转位时，必须先（）不得失去保护。
参考答案：系好安全带
—Why didn't you come to my party? I was so disappointed at your absence.
—I'm very sorry.I _____ but I had a visitor at the last minute.[ ]
A. would like have
B. would like to
C. had planned to
D. were going to
默写二十四节气歌诀。
