Remember to do this in time of H1N1 --- constantly the windows to let fresh air enter and move around inside, and avoiding the access to the crowds, a necessity everyday.
You had better not keep the window open , ____ ?
“That VCD you bought ____ very expensive” . “Do you know ____ ? ”
“I won''t go to school today , Dad ? ” “____ . ”
She must have seen the blind man many times , ____ she ?
— We quarrelled with the tallest girl in your class about the broken table . — How silly ! You ____ it to our headmaster .