男性，60岁。咳嗽，反复肺部感染近1年。吸烟史40年。X线胸片：右上叶近肺门有一4cm×5cm块状影，形态不规则，边缘不整齐。为明确诊断，应进一步做的检查是（）。

A.经胸壁穿刺活检

B.痰细胞学检查

C.胸腔镜检查

D.开胸探查

E.支气管镜检查

句型练习。

1. The shirt cost me only 50 yuan.   （就划线部分提问）

                                       did the shirt cost?

2. That dictionary cost me $10 . (同义句)

I                    10                    for that dictionary. 

3. My parents should allow me to study with friends.（改为被动句）

I should                                     to study with friends.

4. I used to be a naughty boy. (改成一般疑问句)

              you                              be a naughty boy?

5. The little boy cried because he was hungry.（就画线部分提问）

                                     the little boy cry?