英语高手,please.
You ______ be more careful.You _______cross the road now.
A.can;must
B.must;mustn't
C.may;must
D.must;may
请说明理由
参考答案:B
强制性
You ______ be more careful.You _______cross the road now.
A.can;must
B.must;mustn't
C.may;must
D.must;may
请说明理由
参考答案:B
强制性