一．根据句意用所给词的适当形式填空。
1. This dress is very popular this year. Do you know who the ________(design) is?
2. English Classroom is an _______(education) program on CCTV.
3. Many people use computers in their ______(day) lives.
4. Thousands of ______(tour) come to the Great Wall every year.
5. If I am not______(avail) when you phone, ask form my brother.
