You must be quiet in the library. If you make a lot of , you may disturb others.
The MP3 ______ too much. He ______ 200 yuan _______ it .
The art club is for members only. You can’t go in _______ you are a member.
She likes doing her homework _______ the radio _______.
In winter, we must pay attention to _________.
He thinks watching movies ________.