.He always_________his time and his efforts .

The children were made ________ homework two hours a day.

下列句子运用的修辞手法与其他三项不同的一项是（ ）

Premier Wen Jiabao said that if we worked hard and ________ optimistic, we were ________ win thewar against the swine flu.[ ]

The minister said, “We are ready for discussions with any legal parties，but we’ll never ________ with criminals.”[ ]