They are twins (双胞胎), but they look .A. good-looking B. sad C. different
______ the doctors in their hospital is about one thousand, and sixty percent of them ______ women.
He made a fire _______ himself _______ warm.
If Simon _______ hard, he _________ better results in English.
Would you please ________ the children ________ with fire?
There _______ lots of bad news on the Internet for children.