Food prices increased ________ 10% in less than a year.
| A．for | B．to |
| C．by | D．at |
_____I had time to check what I had written in the exam, the bell rang.
| A．If | B．Before | C．Until | D．Since |
It never occurred to me_____ she could complete the task in such a short time.
| A．which | B．that | C．what | D．if |
--Would you like to enjoy the ballet performance at the Grand Theatre with us?
---Oh, sorry. I ____to see the film Interstellar by Christopher Nolan.
| A．arranged | B．had arranged |
| C．have arranged | D．arrange |
____visa change made by China and the US will witness _____increase in economy, tourism and education.
| A．A; the | B．The; ／ | C．A;／ | D．The; an |
Karl, a real book lover, often brings home many books to read ____ the library.
| A．in | B．for | C．by | D．from |