23. 题干： 船舶驶近被居间障碍物遮蔽他船的狭水道或航道的弯头或地段时，应： Ⅰ、特别机警 Ⅱ、谨慎驾驶 Ⅲ、鸣放相应声号

When will you leave the port? ___ February 4.

We ____ many European ports every year.

Where are the derricks? They are ___.

We have ____ blue paint.

He often teaches ___ to speak English.

Li Ming and I ____seaman.

Who ___ you? I＇m a sailor.

What ___ is today? It＇s Sunday.

Rat guard

Fender