70s Tune: ``Trapped in a mine when that caved in & everyone knows that ...''?

Questions

It is estimated that manatees live a maximum of 50 to 60 ----------?

---------- never walk or trot, but always hop or leap.?

"China is a big country, inhabited by many ----------."- Charles De Gaulle (1890 - 1970)?

"---------- are expected to do twice as much as men in half the time and for no credit. Fortunately, this isn't difficult."- Charlotte Whitton (1896 - 1975)?

"Women are like ---------- to me. I like to look at them but I wouldn't want to own one."- W.C. Fields (1880 - 1946)?