1.下列缩略词中，表示“中国”的是________.
A. PLA B. PRC C. VIP D. NBA
2.下列单词中含有元音字母最多的单词是_______.
A. mother B. cake C. policeman D. short
3. Annie is in ________One, ________ Seven.
A. Class, Grade B. Grade, Class C. class, grade D. grade, class
4. --- Are you my new classmates? --- Yes, ________.
A. you are B. we are C. I am D. I’m
