at the children have___, we should let them freeto choose their style of living

_______do you spare time to visit your parents every month?-Twice.

The two old friends were ____ busy ____ with each other that they forgot the time.—Yes. They hadn’t met for over ten years, so they kept talking the whole night.

g safely in bad weather is a _______ taskfor any pilot, and even the smallest error can lead to a disaster

Our headmaster accepted the suggestion by students.