One of the sides of the board should be painted yellow, and .
The plans flew smoothly ______ in the sky and people spoke ______ of the experienced pilots.
Thanks to the good care of the nurses ,the boy is ______ recovering from his lung operation .
Mike came late again. It is _____ of him to keep others waiting.
While sometimes it’s necessary to have phone calls in public, loud phone conversations are not so .
Mary is very clever and_____ worth teaching , but her brother is not .Look he is now _____ asleep in class.