Have you found out the exact reason why the dinosaur _________ many years ago?
A. died down B. died out C. died from D. died of
With the development of Chinese economy, many unexpected problems have ________; for example, the prices of our daily goods and housing are ________ sharply.
A. arisen; rising B. arisen; raising C. raised; rising D. risen; arising
The field research will take Luffy and Steven about two weeks; it will be a long time _______ we _______ again.
A. before; met B. since; meet C. before; meet D. since; met
The person who is _______ of the factory _______ ill since last week.
A. in charge; has been B. in the charge; fallen
C. taking charge; was D. in charge; fell
Diaoyu Islands are made up of a group of islands, ________ China since ancient times.
A. belongs to B. belonged to C. are belonged to D. belonging to
---Where did you find your wallet? --- It was in the shop _______ I bought my iPad Air.
A. that B. which C. where D. there
