Don’t cross the street when the traffic is red. You may _______
Linda's father hates waiting in long lines. I think he's not very _____.
The teacher tells us that __ careful we are, __mistakes we will make.
When the supermarket in our town last year?
The best way to learn new words is by _____ English magazines.
— Would you teach me _________ an e-mail, please? — Sure.