问题补充：
Smoking too much may lung cancer and cause other diseases.
A. devote to
B. attend to
C. contribute to
D. come to
答案：
A. devote to
B. attend to
(答案→)C. contribute to
D. come to
解析：考查词组辨析：A.devote to致力于，B.attend to服侍，照料C.contribute to有助于，导致，e to得到，句意是：抽烟太多会导致肺癌还有其他疾病。选C.
