He found his house broken into and many things stolen _______ his return from office.

1–I prefer to have ahamburger rather than_______ a glass of milk.–Hamburgers You’d better not eat __. It’sjunk food.

John opened the door . There _____ he had never seen before.

Only when be possible to sign the papers.

It’s amazing that Beijing and Zhangjiakou have won the bid for the 2022 Winter Olympics!—Sure it is! The government ________ have made great efforts!