________ I was waiting for a bus, I saw my friend Kitty ________ the street.
A.Though; crossing B.Since; cross C.While; crossing D.Till; cross
A good idea went ________ his mind, and he couldn’t wait to share it with his friends.
A.through B.across C.around D.in
If there is a big fire in a house, you’d better run out of the house ________.
A.as quick as possible B.as quick as can
C.as quickly as can D.as quickly as possible
The structure of the sentence ―Mr. Liu teaches us physics.‖ is ________.
A.S+V B.S+V+DO C.S+V+IO+DO D.S+V+DO+OC
My uncle ________ from his hometown for ten years.
A.has left B.is away C.left D.has been away
Today the forests are becoming smaller and smaller. We must ________ too many trees.
A.prevent people to cut down B.prevent people from cutting down
C.keep people cutting down D.stop people to cut down
