The first snow of every year is always so exciting but too much snow cause troubleA. sh

问题补充：

The first snow of every year is always so exciting, but too much snow cause trouble

A. shall

B. need

C. can

D. must

答案：

A. shall

B. need

(答案→)C. can

D. must

解析：考查情态动词。A应当；B需要；C能够；D必须。句意：每年第一场雪总是让人如此激动，但太多的雪可能引起麻烦。故C正确。