The old lady is reminded to _____ for cars when shecrosses the road.[ ]

I bought ______ exercise books with ______ money.

How do you learn English — I learn English__________ making flashcards..

On snowy days, you have to drive very_________to avoid traffic accidents

Tom, why did you make no reply when I called your name in the street just now—Sorry, Jim. I to my wife on the phone.