.Many companies give away small quantities of their produce as samples ____ people can try them before buying them.

We have a long holiday _______the first day _______ October. [ ]

I don’t know if she___________. If she __________, please let me know.

Mum, I’m tired of doing too much homework every day.—Oh, dear, without hard work, you can’t _______ your dream.

Beijing ______a lot in the past ten years. Now it has become one of the biggest modern______ in the world.