单项选择题
A. What do you want? B. May I come in? C. What do you do? D. May I know your name?
A. Give us plenty of slack. B. Give us a little slack. C. Give us less slack. D. Give us a bit slack.
A. Keep away from the ropes. B. Keep in touch with the ropes. C. Single up the lines. D. Make fast the lines.