We shouldn’t have come north for Christmas vacation. If we _______, we wouldn’t be stuck in the snow right now.

1Tina has three-month-oldcat. She likes it very much.

His parents wouldn’t let him marry anyone ______family was poor.

Though Jack is often tired ______ his job, he is never tired ______ itIn fact, he enjoys it[ ]

He will _______ his uncle’s business when he is mature(成熟的) enough to deal with the public relations.