问题
选择题
The professor requested that all the students _______ the reports at once.
A.would hand in
B.hand in
C.handed in
D.handing in
答案
答案:B
考查虚拟语气:动词request,require,suggest,advise,command等,后面接宾语从句,从句的谓语用(should)do,句意是:教授要求所有的学生立刻教报告。选B。