Mei Baojiu, the son of famous Peking Opera artist Mei Lanfang, because of a serious disease.

Mike often exercises ______ half an hour in the morning.

This car is of good quality . If it _____ break down within 2 years, we would repair it for free.[ ]

I _______ a museum with my friends at this time yesterday.

Would you like to go to a movie with us, Sandy— . I have lots of homework to do.