English: When did you receive a letter from your sister?

Chinese: 你什么时候收到你姐姐的来信？


English: I received a letter from my sister yesterday.

Chinese: 我昨天收到了我姐姐的一封信。


English: When did the work on the house begin?

Chinese: 这座房子的工程是什么时候开始的？


English: Work on the house had begun before my sister left.

Chinese: 在我姐姐离开之前，这座房子的工程就已经开始了。


English: When was the house completed?

Chinese: 这座房子是什么时候完工的？


English: The house was completed five months ago.

Chinese: 这座房子是五个月前完工的。


English: Our new house is in the country.

Chinese: 我们的新房子在乡下。


English: Did your sister know about the new house?

Chinese: 你姐姐知道这座新房子吗？


English: My sister did not know about the new house.

Chinese: 我姐姐不知道这座新房子。


English: How many large rooms does the house have?

Chinese: 这座房子有多少个大房间？


English: The house has many large rooms.

Chinese: 这座房子有很多大房间。


English: Yes, the house has a lovely garden.

Chinese: 有，这座房子有一个漂亮的花园。


English: Why does the house look strange to some people?

Chinese: 为什么这座房子在有些人看来很奇怪？


English: It looks strange to some people because it is very modern.

Chinese: 这座房子在有些人看来很奇怪，因为它非常现代。


English: Is it the only modern house in the district?

Chinese: 它是这个地区唯一的一座现代化房子吗？


English: It must be the only modern house in the district.

Chinese: 它一定是这个地区唯一的一座现代化房子。