Mom, I’m old enough to wash ________ own clothes and ________. You can have a rest after work.

--Who is that woman?  --She is ______ mother. 

I don’t know____. But I know ______name.

--- Oh, there is someone knocking at the door. --- __________ must be your neighbour,     Mrs Black. 

Do you think        necessary to do a bird count ?Yes , we must count them at least once a year