David likes sports.（A）他每天进行运动。He likes playing soccer （B）______ he thinks it is very interesting. He likes swimming, too. (C) He thinks it is relaxing. But he doesn’t watch sports games on TV. He thinks they’re boring. (D) David has a great collection. He has 18 footballs, 20 ping-pong bats, 19 basketballs.
将文中（A）处划线句子译为英语.
____________________________.
选择正确的单词填入（B）处: ___________
A. so         B. but          C. because           D. and
将文中（C）处的划线句子译成汉语
______________________________
把文中 (D)处的划线句子变为否定句
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How many basketballs does David have?          

A．18

B．19

C．23

D．10