Listen, Mum. I heard the footsteps. Is it Dad? —It ___ be him. He’s gone to Beijing on business this morning.

My parents told me not to worry too much. We still have ______ time.

Please turn off the radio, grandma ___now.—OK, I’ll do it right now.

Carl, why not go and help your sister water the flowers there? —Why__________? I’m busy myself. Jack is lying on the grass doing nothing.

The population of the world still now.