单项选择题

In the past, Straub's job was easy, because ______.

A．American families needed more money to live
B．American families had fewer children to support
C．American families had spare rooms to rent
D．American families were not as busy as now

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热门试题

单项选择题

From the last two paragraphs we can conclude that ______.

A．exchange students are welcome in America
B．exchange students must pay much money to the host families
C．American students don't want to join the exchange programs
D．old Americans can benefit from hosting exchange students

单项选择题

To deal with the problem in recent years, Straub and her workmates have to ______.

A．ask different kinds of families for help
B．limit the number of the exchange students
C．borrow much money to pay for the costs
D．force some families to accept students