____ by high mountains, the city is infamous for air pollution.
The students all wear the same uniform, so it’s hard for me to ______ my son among them.
Your room is always ______. You should get it tidied.
I admired my English teacher. I can remember very few occasions ______ she stopped working because of ill health.
Cathy kept the children ______ with stories, songs and drama all day long. The children thoroughly enjoyed themselves.
Mrs. Smith was amazed at how much French the children had ______ in the short time when she had taught them.