Those two boys are twins, _______, they look very different.
Li Hua’s shoes are as as Zhang Hui’s.
—What’s the __________of China? —More than 1.3 billion.
It’s too cold today. Tell him__________the window.
— Why don’t we go swimming tomorrow? — ___________ .
—Do you know ____ girl over there? — Yes. She is ____ exchange student from America.