(2009安徽安庆二模). --Do you think the weather is good enough for a picnic?--Yes. You can't hope for         day at this time of the year.

It is _________ of him to tell lies, so don’t trust.

Professor White has written some short stories, but he is _____ known for his plays. 

— Did you look up the time of planes to Beijing? — Yes, the earliest plane is       to leave at 5:30 am.

  The animal of this kind is _______; we’d better ________.