-- Must you play the guitar so loudly ? I can hardly my book I’m sorry. I didn’t kn

问题补充：

-- Must you play the guitar so loudly ? I can hardly my book .

--- I’m sorry. I didn’t know you were reading .

A. pay attention to

B. rely on

C. catch sight of

D. concentrate on

答案：

A. pay attention to

B. rely on

C. catch sight of

(答案→)D. concentrate on

解析：考查词组：A. pay attention to 注意B. rely on依赖C. catch sight of看见 D. concentrate on专注，句意：--你偏要这么大声谈吉他吗？我几乎不能专注地看书。--对不起，我不知道你在读书。选D。