消防员拼命战斗以拯救这家人。

The firefighters battled ___desperately to save the family.

她在黑暗中拼命寻找丢失的钥匙。

She ___desperately searched for her lost keys in the dark.

他拼命抓紧绳子，以免掉落。

He clung ___desperately to the rope to avoid falling.