You should study harder______ it is too late to catch up.

My neighbor asked me _______ I heard the big noise last night.

–What do you think of Henan Province? --It’s a wonder place. ____ you go there, you can find many fantastic sights. 

Maria likes thrillers, ____ she doesn’t like action movies.

In China, red represents power ______ it is also the color of strong feelings.