根据句意,用括号中所给单词的正确形式填空。
They are trying to do something ______(help) the old.
Sally prefers staying at home to ______(go) out on Sundays.
How is your uncle? Please say hello to ____(he) for me.
Nancy is too young to look after _______(she).Don’t leave her alone.
Recently the drought(干旱) is serious in the ______(south) part of China.
Today most students can go to high school for further _______(educate) in our country.
We’re doing a lot of activities to celebrate the _____(ninety) birthday of the Communist Party of China(中国共产党) this year.