8.—Isn’t it a surprise that I happened to meet Emily at Doris’ birthday party last weekend? —If my memory serves me correctly, you__________each other for exactly three years.
The open university was started in order to help those who _____ having a university education when they were young.
He has left his book here on _____, so that you can read it.
I remember her face but I cannot _____ where I met her.
It is clear that the whole world is passing through a social revolution in which a central _____ must be taken by scientists and technologists.
When I took his temperature, it was two degrees above _____.