The Diaoyu islands have been part of China’s territory since ancient times, ______ as important fishing grounds of Taiwan.
What the doctor really doubt is_____my mother will revover from the serious disease soon.
Her name was on the _______of my tongue, but I couldn’t tell it.
________her home, Mary helps her mother with some housework.
They often _______their friends at weekends and they always have a good time.
Do you think everything _______was true?