Fill in blanks according to the sentence
题型：填空题
问题：
| Fill in blanks according to the sentences or pictures. (根据上下文或图片填出单词的正确形式。) | |
 | 1. The green pencil is _____ than the black one. |
 | 2. — What's the matter? — My leg is _____. |
 | 3. — What did he do yesterday? — He _____ _____. |
 | 4. Mike went to Beijing by _____. |