To children, good habits do not come        , so parents and teachers need to be their role models.

The hotel was nice; the weather was warm; the beaches were beautiful. ________ I’d say it was a great vacation.

 I know what we're doing is legal, but ____ it doesn't feel right.

There was such a long queue for coffee at the interval that we_________gave up.

Polar bears live      on sea ice，which they use as a platform for hunting seals