Mary is the only one of the students in our class who ____ to the Great Wall so far.
This project helping poor children in remote areas receive education.
When ________ for his views about his teaching job, Tommy said he found it very interesting and rewarding.
It is well-known that advertising is often the most effective method of .
Alice as well as her friends for the breakdown of the school computer network.
—Will Lucy sing at the party?—She is very shy, but she try, for she has changed a lot recently.