Future Perfect Continuous (Progressive) tenses

Future Perfect Continuous: Fill in the correct form of the verb.

Lily computer games for hours. (to play)
Mum sandwiches for two hours. (to make)
The man books for years. (to write)
The group together for years. (to sing)
The cake for 30 minutes. (to bake)
The teacher for 20 minutes. (to talk)
The dog for hours.(to bark)
The cat mice all day. (to chase)