求英语大师解答~观察：1.She is crying in the bathroom because she did b

求英语大师解答~观察：1.She is crying in the bathroom because she did badly in the English exam接下
2.She feels very lonely because she has no friends to talk with.总结：because 是_____词,引导 ______从句.(1) We feel excited because it’s interesting.（翻译） (2) The boy becomes very angry because his pen is lost again.（翻译） (3) The boy ____ very ____ ______ he has ___ __homework to do.(4) The girl ______ very ____ ______ all the buildings in her school ______ down.