The Great Wall istourist attraction that millions of people pour in every year.
so a well-known
a so well-known
such well-known
such a well-known
Without electricity human life_______quite different today.
What would have happened____, as far as the river bank?
—— Will you stay for lunch? —— Sorry, _____. My brother is coming to see me.
—— Why do you make me do so? —— I am sorry that you________do such a thing.
—— Must I take a bus ? —— No, you____. You can walk from here.