complaint 你還在抱怨嗎3

3. He ________ (向服務(wù)員抱怨說) that his meal was cold.
    4. Almost immediately he began to _________(抱怨起天氣來).
    Key:
    1. deal with customer complaints
    2. complaining of a slight headache
    3. complained to the waiter
    4. complain about/of the weather