I have the ____ of reading before sleeping．It has been part of my life．（ ）
A．courageB．chanceC．spiritD．habit
﹣What's that noise，Sam？
﹣My little brother with his toy car now．（ ）
A．will playB．is playingC．playsD．played
We each other since I came to Beijing， but we send emails very often．（ ）
A．don't seeB．didn't see
C．won't seeD．haven't seen
I on the computer when Frank called me last night．（ ）
A．workB．will work
C．was workingD．am working
If you take this train， you in Shanghai in five hours．（ ）
A．arriveB．will arrive
C．arrivedD．have arrived
Zhaozhou Bridge is one of stone bridges in the world．（ ）
A．oldB．olderC．oldestD．the oldest