根据所给提示及句意，写出句中所缺单词，使句子完整正确。
Now our classroom is big and        (明亮的).
Amy often        (买) gifts for her parents on their birthdays.
Nanjing is a        (现代化) city with many tall buildings.
We do after-school          (活动) in the afternoon after class.
—Do you watch the Voice of China？
—Yes. Zhang Lei and Beibei are my        (偶像).