【题目】用所给单词的适当形式填空。
【1】Last year, I_________ (go) to Changsha for vacation with my family.
【2】There are so many _________ (difficulty) in our life.
【3】Come on, you’ll be _________ (good) later on.
【4】Use the _________ (step) to come into the pool.
【答案】
【1】went
【2】difficulties
【3】better
【4】step
【解析】
略
