1 . I had ________ (投诉) to the manager about our rooms but I didn’t get any satisfactory response. (根据汉语提示单词拼写)

2 . He c__________________ to the hotel manager about the cold meal. (根据首字母单词拼写)

3 . Since everything is OK, we have nothing to c______ (抱怨) about. (根据中英文提示填空)

4 . There is no sense in _______(抱怨) about such problems. We should take action now. (根据汉语提示单词拼写)

5 . What annoys us is that he usually does nothing but ________(抱怨) about having so many things to do at weekends. (根据汉语提示拼写单词)

6 . Last night, she ______ (抱怨) to the official about the poor service on Britain’s railways. (根据汉语提示单词拼写)