Yangzi River is the first _______ river in China. A. bigger B. big C. biggest
下面属于元音字母的是________.
与r相邻的字母是________.
--- If I_______ one million dollars, I would give it to medical research. ---If I _______ you, I would give it to charity.
I like singing and ________ Tom.
Helen ________watch TV at home _______ hang out with her friends.