Exercise is ______ as any other to lose unwanted weight.
This is Mr.Smith, ________ I think has something interesting to tell you.
The school _____ my father teaches is a world-famous one, _____ was set up 100 years ago.
The most important thing _____ we should pay attention to is the first thing ____ I have said.
The factory ____ the students visited last week is the one ____ I have worked for thee years.
Anyway, that evening, _______ I'll tell you more about later, I ended up staying at Rachel's place.