We have sixty students in our class. of them are boys. How many girls are there, do you know— Forty.

I often think of the years ____ I worked with the foreigners, ____ has had a great effect on my later life.

The world famous director, three of _____ movies won Oscar awards, is reported to have retired.

My father ___________________________ when he was in his twenties.

We have two ____________for the coming party.