1. David often goes to movies with friends on Sundays. (改为一般疑问句)
    _________ David often _________ to movies with friends on Sundays?
2. My mother has some sugar in her bag. (对划线部分提问)
   _________ _________  sugar _________ your mother _________ in her bag?
3. I think hamburgers are very popular in China. (否定句)
    I _________ _________ hamburgers are very popular in China?
4. There were two teaspoons of salt on the plate. (对划线部分提问)
    _________ _________ _________ of salt _________ _________  on the plate?
5.Can you tell me how to make an apple shake? (改写同义句)
    Can you tell me _________ I can _________ an apple shake?