单项选择题

This ten-year-old boy lost his life () his classmate in the water.

A. trying to save
B. tried to save
C. to try saving
D. to try to save

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单项选择题

In what way is Justin’s backpack a smaller version of his bedroom().

A. He uses it as a place to store objects.
B. He uses it to carry his books and sports equipment.
C. His parents tell him to clean it all the time.
D. He has had it for too long a time.

单项选择题

According to the passage high-tech devices can make youngsters ().

A. more intelligent
B. more stupid
C. study more easily
D. get more information