Chairperson Xi asks us _________ strict economy (厉行节约) in our daily life.
We go _____ duty at 8 a.m.
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.