When did you last see Shelly—OnSundayof last December atcelebrationof her 40th wedding anniversary．

Will people live to be 300 years old —_______. But maybe people can live to be 200 years old.

. The boy was sitting at the desk, ______ hard when his mother got home.

A warm thought suddenly came to me ______ I might usethe pocket money to buy some flowers for my mother’s birthday.

Could you please ___ your room after school