她用塑料壶来端柠檬汁。

She used a plastic ___jug to serve the lemonade.

她把一加仑的水壶放进了冰箱。

She put a gallon ___jug of water in the refrigerator.

他小心地将热汤倒入壶中，然后分到碗里。

He carefully filled the ___jug with hot soup before pouring it into bowls.