下列句子中加点的成语的使用，不恰当的一句是（ ）

________ late in the morning, Bob turned off the alarm.

I think eating more food can help you keep .

On a rainy day I was driving north through Vermont, ______ I noticed a young man holding up a sign _____ “Boston”.

The good thing about children is that they________ very easily to new environments.