As we all know the H1N1 Flu is so serious, students can’t go into the school _______ they take the temperature and get sure they don’t have a fever.
—Is that your father?—No. It’s my uncle, my mother’s _____.
We have four classes ______ the morning.
含有相同音素的一组字母是______。
We should save water because people can use water to make _____. A. energy B. sound C. rain
Fishing with birds is a _________ skill in Guangxi Province. A. modern B. traditional C. important