单项选择题
Pay more attention to （） .
A. the ride and fall of the tide B. ride with fall of the tide C. riding and falling of the tide D. riding with falling of the tide
单项选择题 On which side shall I rig the pilot ladder? （）
单项选择题 Is the pilot ladder all right at this （）?
单项选择题 On which side do you want the pilot ladder rigged?（）
