12. 题干： 船舶在雾中航行，如天气条件许可，则了望人员应尽可能增设在下列哪个位置?

You are good ___ English, aren＇t you?

Please return it after ___.

The bosun is satisfied ___ your work.

____, is it possible to go there by bus?

I＇m looking forward to ___ you again, Mr White.

___ is ti now?It＇s eight o＇clock.

I think we＇ll finish ___ the hull this morning.

You are a captain, ____?

What＇s ___ you?

The captain is ___ the ship.