European football is played in 80 countries, _____ it the most popular sport in the world.

_____ more attention, the trees could have grown better.

I don’t allow ______ in my office and I don’t allow my family ______ at all.

“What did you do in the garden?”
“I watched my father ______ his motorbike.”

Most of the artists _______ to the party were from South Africa.

There was a terrible noise ______ the sudden burst of light.

Go on _______ the other exercise after you have finished this one.

－What do you think of the book?
－Oh, excellent. It’s worth ______ a second time.

Do you know the boy _______ under the big tree?

I wouldn’t want to go back          an employee now that I have been self-employed．