g kites, ______ some researchers point out, can not only bring about joy to us, but also promote our physical and mental health.

My mother is ill. I _______stay at home andlook after her.

We are sparing no efforts to create _____ more peaceful and more advanced world, ____ place where everyone enjoys his life and freedom.

I’d like to ______ 500 yuan for the bike.

Not wanting to ____ her husband for a living, she went back to work soon after they got married.[ ]