Alien had to call a taxi because the box was _____ to carry all the way home．

The number of the workers here ___ 200. Half of them ____under 30 years old.

What do you think of him?— I hate people ____ talk much but do little.

Could you please tell Lucy that I want to talk to her? —Sure, I will tell her as soon as she _______ back.

The story of Tom Sawyer ______ in Missouri, America, in the 19th century.