问题补充:
(·长沙二模)—The research on the new flu virus vaccine is challenging and demanding.Who do you think can do the job?
— my students have a try?
A. May
B. Must
C. Will
D. Shall
答案:
A. May
B. Must
C. Will
(答案→)D. Shall
解析:选D考查情态动词。句意:“新的流感疫苗的研究是具有挑战性而且要求很高的。你认为谁能做这个工作?”“我的学生可以试试吗?”情态动词shall用于第一、三人称的疑问句时,表示请求。