用as a result，because，so 或so that 填空
【小题1】She didn't study hard，_________，she failed the exam.
【小题2】We arrived there early _________ we can have time to warm up.
【小题3】There is no bus here. _________ we have to walk home.
【小题4】I have fun playing games _________ it gives me time to be with friends.
【小题5】The students often go to school without breakfast. _________，they often feel hungry in class.