这位铁匠花了三天时间锻造出一把精美的匕首。

The blacksmith spent three days ___forging an exquisite dagger.

警方抓获了一个团伙，他们涉嫌伪造信用卡。

The police caught a gang suspected of ___forging credit cards.

尽管疲惫不堪，登山队仍在积雪中艰难前行。

Exhausted but determined, the climbing team kept ___forging through the deep snow.

两国正在建立更紧密的经济合作关系。

The two nations are ___forging closer economic ties.