用所给单词的适当形式填空。1. The students are in the playground. They (have)a PE lesson.
2. Let's (do) some exercise.
3. Jump up and down eight (time).
4. Boys and girls, listen to me (careful) ,please.
5. Please (not put) your hands on his head !
试题答案
1. are having 2. do 3. times 4. carefully 5. don't put