Parents often tell their children that they __________ take candy from strangers．

I have two sisters. One is a teacher, ____ isa singer. .

_________thatdeveloped countries want to limit the development of the developing countriesin the climate conference in Copenhagen.

Five million, five hundred and fifteenthousand, one hundred and fifty-one is ______.

wonder why he has been acting so strange these days. — Recent pressure at work may ________ his behavior. [ ]