15. __________ made his mother worried.

A．The child was addicted to playing computer games

B．The child’s being addicted to playing computer games

C．The child’s being addicted to play computer games

D．The child addicted to playing computer games

报考小型汽车准驾车型的，申请人应当在取得学习驾驶证明满（）后预约考试科目三。

A.十日

B.二十日

C.三十日

D.四十日