(B)根据句意及汉语提示完成句子，每空一词。
【小题1】________ _______ _______(在他们的帮助下)．we got to the hotel on time．
【小题2】We finished learning Lesson Three________ ________ _______ ________
(在……末尾)the second week．
【小题3】My sister used to_______ _______ ________(上舞蹈课)．She likes dancing．
【小题4】I have made decisions to________ ________ ______(更加努力地学习)for exams．
【小题5】I studied harder，but I still_______ ________ _______(成绩差)in math．