When I went in, my pet happened ________ on my bed, ________ TV.
If he had spent more time practicing speaking English before, he _____ able to speak it much better now.
The water supply has been cut off temporarily because the workers ____ one of the main pipes.
At our factory there are a few machines similar to _______ described in this magazine.
It was not until near the end of the lettershe mentioned her own plan.
In some languages, 100 words make up half of all wordsin daily conversations.