—Does Liu Li have a pen?-- ____ . But he has a pencil.
Li and I arrived ______ Heishan country safe and sound, all is well. Don’t be worry.
The kids are doing some experiment ______ the farm in the country.
We are listening the weather report _____ the radio.
Sandra said she would be back _____ this morning.
Do they work _____ the day time or _____ night?