[填空题]The hours when the children spend in their one-way relationship with television people, undoubtedly affect their relationships with real-life people.

[单项选择]The hours ______ the children spend in their one-way relationship with television people undoubtedly affect their relationship with real people.
A. in which
B. on which
C. when
D. that

[填空题]Modern children feel disheartened when they have to go to work.

[单项选择]When I was a child, I would spend hours every day ______ the piano.
A. play
B. playing
C. played

[单项选择]The children cheered up when they saw hundreds of colorful balloons（）slowly into the sky.
A. floating
B. raising
C. heaving
D. ascending

[单项选择]The more time children spend watching television the poorer they perform academically, according to three studies published on Monday. (47) television viewing has been blamed for increasing rates of childhood obesity (肥胖) and for aggressive behavior, while its (48) on schooling have been inconclusive, researchers said. But studies published on the topic in this month’’ s Archives of Pediatrics (小儿科) & Adolescent Medicine concluded television viewing (49) to have an adverse effect (反作用) on academic pursuits. For (50) , children who had televisions in their bedrooms--and (51) watched more TV--scored lower on standardized tests than those who did not have sets in their rooms. In contrast, the study found having a home computer with (52) to the Internet resulted in comparatively higher test scores. "Consistently, those with a bedroom television but no (53) home computer had, on aver age, the lowest scores and those with home computer but no bedroom television had the