Try not to cough more than you can since it may cause problems to your lungs.
A. help
B. stop
C. allow
D. check
网友回答
(答案→)A. help
B. stop
C. allow
D. check
解析：A. help帮助，B. stop停止，C. allow允许，D. check检查，核实，句意：句意：既然咳嗽会引起肺病，那么能不咳嗽就尽量不要多咳嗽。“（not）more than one can help意思是“尽量不，绝对不”，所以选A。