By the middle of the 1920s the farthest corners of the earth explored.
| A．are | B．were | C．have been | D．had been |
It is believed that high achievers are ambitious, hard working, and work toward personal standards of excellence ______ material rewards.
| A．other than | B．or rather |
| C．rather than | D．or else |
There is a common belief among the students in our school ______ they should try their best to learn and reach the peak of their academic performances.
| A．which | B．if | C．that | D．whether |
— How is that, Jane?
— I wonder ______ it takes to be a good teacher beyond patience and a great knowledge of students.
| A．how is it that | B．what it is that |
| C．how it is that | D．what is it that |
Meeting my teachers and fellow students after so many years was a warm occasion, ______ I’d strike into my heart.
| A．that | B．one | C．when | D．what |
The director was fully convinced that this moving story, if ______ for television, would be a hit.
| A．adapted | B．being adapted |
| C．to be adapted | D．having been adapted |