21.   Most hands shot up.

22.   My hand shoots out and covers the glass.

23.   My hand shot up.

24.   Nearly every hand shot up.

25.   Often, every hand shoots up.

26.   Not a single hand shot up.

27.   Several hands shot up.

28.   Several hands shoot up immediately.

29.   Ten hands shoot into the air.

30.   The hands of fellows shot up.