根据句意或首字母提示完成句子。

【1】Tom's books are_____—on the desk, on the bed and under the chair．

【2】The fourth day of the week is W_____．

【3】Helen is my aunt's daughter. She is my_____．

【4】My_____ name is Smith．You can call me Mr．Smith．

【5】I like P．E．b_____ it's relaxing．