男性，65岁，咳嗽，痰中带血1个月，服用抗生素症状有所缓解，首先应做哪项检查除外肺肿瘤

A．痰细胞学检查

B．纤维支气管镜检查

C．胸部X线检查

D．胸部CT

E．气管断层检查

— Would you like some more fish? 

— No, thank you. I've had ____.  [ ]

A. a lot of

B. enough

C. plenty

D. many