Do you know the man ______ is talking with your father?—Yes, he’s our head teacher.[ ]

I still remember the days __________ we spent together at JingGang Mountain ______ is the famous place of interest.

You must give the wallet back ____ it belongs to.[ ]

Tom and Mike enjoy _________ TV.

Do you _________ lots of time exercising every day? —Yes, it’s good for my health.