单项选择题
It’s raining. Stop （）, please.
A. work B. to work C. working D. job
单项选择题 You can swing the derrick to starboard side or port side. But do not exceed （）for the union purchase.
单项选择题 When the derrick is lowered, the guys must be （）.
单项选择题 When the derrick is topped, the guys must be （）.
