1) The school (1) many complaints (2) parents, who were unhappy with the cost of school trips. 2) She was unhappy with the service and (3) a complaint (4) the manager. 3) The hotel received a complaint (5) the quality of the food in the restaurant. 4) He was sacked after someone made a (6) complaint about his work.__5__(完形填空) .receive .from .made .to .about .formal
