用所给词的正确形式填空。 When you feel that you have received unfair (treat) ,the Service Quality Manager will conduct an investigation into the matter. Please note that only (qualify) applicants will be conducted by the hiring manager. My products will (gradual) accepted by customers and gained a good reputation in the market. The card issuer must send you the refund within 7 business days of (receive) your request. Obviously,nuclear power can never be the only ( solve) to energy crisis.