With the country’s population reaching 1.6 billion in the mid of this century, most of China’s rivers, including the Yellow River, ____.[ ]

Do you know the man _______ is talking withour English teacher—Oh, he must be Lin Tao’s father. He was lookingfor Lin Tao just now.

Our classroom is very clean Do you know who＿＿cleaned it﹖

I am not in the market for a new mobile phone at the moment. I can’t afford it.

My mother insisted the coat ____ me quite well and that I ____ it when attending assembly.