Mrs Black isn’t in and I’ll have to ring ______ I would appreciate it if you ring _____ after 6 o’clock?

The _____ of the harmful chemicals on the world’s lakes and oceans has raised awareness of the public.

Grandma sent Johnny some money for his birthday. Johnny spent all of it in five stores. In each store, he spent $ 1.00 more than half of what he had when he came in. How much money did he get from his grandma

.My ambition _____ for a firm that developscomputer software when I grow up.

Mr Green is very strict his students, and he is also strict his work.