It was _______ he worked hard that he succeeded in the end.
| A．because | B．since | C．as | D．for |
In the new term,I'd like you to know the three different _______ to the study of math.
| A．approaches |
| B．means |
| C．methods |
| D．ways |
As you know, the output of cars in 2010 is five times _______ it was in 2000 in the factories across our country.
| A．which |
| B．that |
| C．how |
| D．what |
_______ medical issues, we also have to face moral and legal issues when cloning human beings.
| A．Regardless of |
| B．As a result of |
| C．In addition to |
| D．Except for |
The top leaders of the two countries are holding talks in a friendly
_______ .
| A．atmosphere |
| B．state |
| C．situation |
| D．phenomenon |
The suggestion that the headmasterthe prizes was welcomed by every student.
| A．presented |
| B．present |
| C．presents |
| D．would present |