两条直线被第三条直线所截,如果同旁内角互补,那么这两条直线平行,题设是______,
结论是______.
题设是同旁内角互补,结论是两直线平行.
根据括号中所给的汉语写出单词,使句子意思完整正确。
1. There is some ______ (水) in the bottle.
2. Mrs Jiang is good at ______ (唱) English songs.
3. Daniel is an active boy and he is crazy about playing ______ (足球).
4. The old man lives alone, but he doesn't feel ______ (孤独的) because he has many friends.
5. They wanted to remind us that we should protect the ______ (环境) by showing us the beauty of nature.
对外汉语教学的教学规律是由()、语言学习规律、语言教学规律等共同决定的。