There _____ a ticket, a lamp and some keys on the table.

She ______ have left school, for her bike is still here. [ ]

If I work hard at my lessons from now on. Can I do well in them— Sure. .

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.

In some developed countries, larger population is ______________ in their big cities