单项选择题
A．They eat huge amounts of food. B．They usually eat twice a day. C．They usually eat to their hearts’ content. D．They eat much less than people assume.
A．A new shuttle bus. B．A scheduled space flight. C．An airplane flight. D．The first space flight.
A．Reading on the campus lawn. B．Depositing money in the bank. C．Applying for financial aid. D．Reviewing a student’s application.