The reason ____the little actress has been such a success is ____she is both clever and hard-working.
| A．why, why | B．why, that |
| C．that, because | D．for, because |
He’s thinned down a lot since he ___________ a diet.
| A．got on | B．put on | C．kept on | D．went on |
--- Did you find your book last night?
--- Yes, I finally managed __________ the book I was looking for.
| A．to find | B．finding | C．to found | D．founding |
What are the differences between the American and British ____________of government?
| A．systems | B．religions | C．customs | D．theories |
Jack has made great achievements in his work, and the harder he works, the _________ he becomes.
| A．religious | B．energetic | C．curious | D．independent |
--- Bob, where are you working now?
--- I used to work in a small company, but I ________ a job in some bigger companies.
| A．have sought | B．had sought | C．was seeking | D．am seeking |