In the end everything turns out OK—the teenager becomes ____________ healthy adult, and this period of change and challenge is traded for ____________ changes and challenges of grown-up life.
| A．a; / | B．the; / |
| C．a; the | D．the; the |
It suddenly occurred to him _____ he had left his keys in the office.
| A．whether | B．where | C．which | D．that |
New technologies have made ______ possible to turn out new products faster and at a lower cost.
| A．that | B．this | C．one | D．it |
Building a new school is one thing, while keeping it running smoothly is quite_______.
| A．the other | B．another | C．neither | D．others |
China has been pushing the reform of public hospitals ______ all its citizens.
| A．in charge of | B．for the purpose of |
| C．in honor of | D．for the benefit of |
I don’t believe we’ve met before, ________ I must say you do look familiar.
| A．therefore | B．although | C．since | D．unless |