---Jim, it's so late . are you busy with?
--- My homework.. If I don't finish it, my teacher will be angry with me.
| A．What | B．Why |
| C．How | D．Who |
Li and I arrived ______ Heishan country safe and sound, all is well. Don’t be worry.
| A．in | B．on | C．/ | D．at |
The kids are doing some experiment ______ the farm in the country.
| A．in | B．at | C．on | D．for |
We are listening the weather report _____ the radio.
| A．over | B．in | C．with | D．from |
Sandra said she would be back _____ this morning.
| A．in | B．on | C．at | D．/ |
Do they work _____ the day time or _____ night?
| A．at; in | B．in; at | C．on; at | D．at; on |