You'd better ________ the window.

1. A.
   don't look out of
2. B.
   not look out of
3. C.
   don't look out from
4. D.
   not look out from

One day three Frenchmen who did not know English very well were talking about the English language.
The first Frenchman said, ‘I heard someone shout ‘look out’ ,I put my head out of a window and a basin of water fell on me. It seems that ‘look out’ may mean ‘don’t look out!’
The second one followed, ‘ I was once on a ship and heard the captain（船长） shout, ‘All hands on the deck(甲板)’ I put my hands on the deck and someone trod(踩)on them.’
The third one told his friends his experience too, ‘One early morning I called on my English friend and the maid(女佣) said, ‘He is not up yet, come back in half an hour.’ When I went again for him, she said, ‘He’s not down yet.’I said, ‘If he’s not up and he is not down, where is he then?    What a strange language it is!’
【小题1】What is the possible meaning of “look out” in this passage?

First Frenchman: I once heard someone shout, “Look out,” I put my head out of a window and a basin (盆) of water fell on me. It seems that “Look out” may mean “don’t look out.”
　　Second Frenchman: Once I was on a ship and heard the captain (船长) shout, “All hands on deck,” I put my hands on the deck and someone walked on them.
　　Third Frenchman: I once visited an English friend early in the morning and the maid who came to the door and said, “He’s not up yet. Come back in half an hour,” When I went again for him, she said, “He’s not down yet.”
　　“If he’s not up and he’s not down, where is he?” I asked.
She said, “He’s still in bed. When I say ‘He’s not up ’  I mean ‘he has not yet got up’. When I say‘He’s not down ’I mean ‘he has not yet come downstairs.”
【小题1】“Look out”here means “ _______”.