问题
Look ! There are so many mistakes in your composition . You ____ have paid attention to it.
A:may
B:must
C:can
D:should;
B:must
C:can
D:should;
正确答案是：
同类题型
_______ do you have out with your friends—-Once a week.
I am not going swimming tomorrow afternoon. —-_____. I have to clean up my bedroom.
As it reported, it is 100 years _____________ TsinghuaUniversity was founded.
ny cities of China, if an ambulance is＿＿in a traffic jam, police will respond to the emergency.