.－Did you have a good sleep last night?－Yes, never sleep ____．

________ and short of breath, Andy and Ruby were the first to reach the top of Mount Tai.

The police chief advised his men to keep________ and not lose their tempers.

Sometimes the same word has ________ meaning，which can be ________.

You are _____ careful than your brother. You two can’t do the work that needs care and skill.