她说：“我太累了，”一边打哈欠一边伸展。

"I'm so tired, " she said, yawning and ___stretching.

在做任何剧烈运动前伸展是个好主意。

It's a good idea to ___stretch before you take any serious exercise.

将你的手臂伸过头顶。

___Stretch your arms above your head.