We take this opportunity to express our sincere of your timely help.
In the 19th century the government _____ land to settlers willing to take care of it.
It ______ quite correct that happiness comes from thinking about things in a positive way.
. There's no bus now, and we can't get home _______ by taxi.
— Did you know any Chinese, Joyce, before you arrived in Beijing? — In fact, never _______ it.
— Ten dollars, please! — How terrible! I ______ to bring my wallet with me.