All the teacher taught at the last lesson seemed easy __.A, to be understood B. to understand C. being understood D. understanding
--I'm sorry I made a mistake!-- Nobody is perfect.
I want to tell you is the deep love and respect I have for my parents.
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.