— Can I walk across the road now, mum?
— No, you ________. You have to wait until the light turns green.
A:couldn't
B:shouldn't
C:mustn't
D:needn't
将自然数1,2,3,…,依次写下去,组成一个数:12345678910111213…,当写到2054时,这个大数除以9的余数是____ .
— , Chinese mobile phones, like Huawei, have improved greatly.
— I agree. That’s why made-in-China products are more and more popular now.