He made a lot of mistakes carelessness.
“What did you do in the garden?” “I watched my father ______ his motorbike.”
I don’t allow ______ in my office and I don’t allow my family ______ at all.
_____ more attention, the trees could have grown better.
European football is played in 80 countries, _____ it the most popular sport in the world.
The Olympic Games, ____ in 776 B. C., did not include women players until 1912. A. first playing B. to be first played C. first played D. to be first playing