单项选择题
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.
A．His computer doesn’t work well. B．He isn’t getting along with his staff. C．He didn’t register for a proper course. D．He can’t apply the theory to his program.