Mr Black doesn’t agree to keep a cat a pet because he hates cats．

What are you going to do this afternoon— My hair is long, I want to get my hair .

There is someone knocking at the door.- It ______ be Jimmy, he has gone to ShangHai .A．needn’t

The car accident happened ______ a cold winter morning.

________ more energy to my study instead of being crazy about Internet games, I would be sitting in a comfortable office now.