Would you say that you and your friends had milled around the school if you were running around, chasing each other playing tag? explain

Yes

Explanation:

If you were on school grounds while class is not in session then yes. playing tag outside is not necessarily a school sponsored activity, unless you were playing on teams and a teacher were present.

Sentence 1. Baseball is unique because it is the only sport in America that does not have a time clock  - although tennis and softball are not timed, either.

Explanation:

In this sentence baseball is described as being the only sport without a time clock. However, the sentence then goes on listing two other sports that do not have time clocks: tennis and softball. This information is conflicting because the speaker contradicts the information by showing that baseball is not the only sport without a time clock. The other sentences do not include any conflicting information.