Jim gave me a letter to post. I . remember to post it.
must
can
needn’t
may

I must remember to post it.

people live on the earth.

people help make the world a better place.

the colour of the skin: skin,white,black,red,yellow.

eye color: каррие,blue,green,grey.

hair color: brown,brown.

same people do not.

1.) it (was) sunday yesterday and they (were) at home.

возможен и этот вариант:

  it (was) sunday yesterday and they (weren't) at home.  2.) kim (was) at her grandmother's yesterday.

возможно:

  kim (wasn't) at her grandmother's yesterday.  3.) she (is) at home.  4.) mum and dad (were) at work yesterday.  возможен и этот вариант:

  mum and dad (weren't) at work yesterday.  5.) they (are) in the village.