After completing and signing it, please return the form to us in the envelope ________.

If not tired from work, I will spend some time      in my study every evening.

 Often they give up sport, _________they have no time _______after their work.

Deeply       his unhappy childhood, the boy’s         seemed quite odd and strange.

Today we have too many choices of communication through advanced technology，but we seem ___________the joy of communicating face to face．