Do you have to take care of your mother at home ? — Yes , I ____ .

How long do you think it is ________ he arrived here? —No more than half a year, I believe

As teenagers get older, they struggle to be ________, but at the same time, they may badly want and need their parents’ love.

下列有关文化常识的表述，不正确的一项是()

I did not see your sister at the meeting. If she , she would have met my brother