To our great ________,Geoffrey’s illness proved not to be as serious as we had feared.
With the development of Chinese economy, many unexpected problems have ________; for example, the prices of our daily goods and housing are ________ sharply.
The field research will take Luffy and Steven about two weeks; it will be a long time _______ we _______ again.
The person who is _______ of the factory _______ ill since last week.
Diaoyu Islands are made up of a group of islands, ________ China since ancient times.
---Where did you find your wallet? --- It was in the shop _______ I bought my iPad Air.