Many parents are (14) ______ about the effects of television, especially on their children. Firstly, there are a lot violent films (15) ______ easily lead to crimes. Secondly, advertisement is bad for children. They see (16) ______ advertisements on sweets, ice cream, and toys. Then of course, they want to go out and (17) ______ them. Besides, sitting in front of a television set all the time is bad for their _(18)_______. About one third of the children (19) ______ glasses. Finally, watching television is not (20) ______. It is very important for children to do something creative and athletic, (21) ______ playing some musical instrument, painting, and playing football. 14.A. worry B. worrying C. worried D. to worry 15.A. who B. whom C. which D. what 16.A. many B. much C. a great deal D. so much 17.A. sell B. buy C. create D. spend 18.A.head B.ears C.eyes D.hands 19.A. takes B. does C. applies D. wears 20.A. create B. creating C. creation D. creative 21.A. such as B. so as to C. so as D. such that