sthe headmaster, Tony You______hello to him－SorryI didn’t notice him

On snowy days, you have to drive very ________ toavoid traffic accident.

–What’s new on the Web–Look！An amber______ the ancient spider’s web.

It is said that the terrible weather will ________ foranother week.

It is reported that single-parent children _____ some of the functions that the absent adult in the house would have served.