根据句意,在答题卡标有题号的横线上,写出括号内所给单词的适当形式。
1. This kind of glasses is _______ (special) designed for the teenagers.
2. Tu Youyou won the Nobel Prize in her ________ (eighty).
3. James looks at his watch from time to time. Why is he so _______ (patient)?
4. “Practice makes perfect.” They often encourage ________ (them) when they have difficulty in learning.
1.specially 2.eighties 3.impatient 4.themselves