Don’t let yesterday use too muchtoday.[ ]

How careless Tom is! He forgot to remind his boss _____ the important meeting yesterday. 一 What is terrible! I am afraid his boss will never forgive him _____ his carelessness. [ ]

There are fifty students in our class, _____ of us _____ football.

Smoking is not allowed in public places since May 1st. It may be a good chance for some people to ______ smoking.

________ Tom and his mother often watch tennis matches on TV?— Yes, they ________.