Oh, when was ___ exactly? — It was in

We don’t have enough nurses to look after the patients. At least______ are needed.

Is your brother afraid _____ the dark? —Yes. He goes to sleep _____ the bedroom light on.[ ]

I hear a foreigner will come to our school. Do you know him ?—Yes, Edward, university student from Europe, will teach us art in his spare time.

_____ did your uncle leave his hometown?—He ________ for nearly twenty years.