—Look at the flowers I gave you last week. They are dying! _______ do you water them?—Sorry, I forgot to water them.
She looks very sad. I want to help her, but I just don’t know ____ to do it.
---How will students study in the future? - -- ____home______ computers.
Xiao Shenyang says that _________ job is to make people happy.
I hope we can fly to _________ moon one day.
— What did Paul say last night? — He said _________ listening to the radio program—“Teen Talk”.