Don’t talk with your partners in class_______ you are asked to do so.A. if B. when C. unless
The missing boy was last seen ___ near the river.
They knew her very well. They had seen her ___ up from childhood.
---I'm sorry to keep you waiting. ---Oh, not at all. I ___ here only a few minutes.
You don't need to describe her. I ___ her several times.
—_______ does it take to walk from your home to your school? — Fifteen minutes.