This is the only article _____ was written by him.
| A．who | B．whom | C．which | D．that |
You may find it _______ that Charlie was taught to sing as soon as he could speak.
| A．astonishing | B．astonished | C．to be astonished | D．to be astonishing |
Since then, finding ways to grow more peanuts ______ his life goal.
| A．has been | B．were | C．was | D．have been |
______ with new scientific farming methods, they have been able to use less farmland thanin the past.
| A．Equipped | B．Having equipped |
| C．To be equipped | D．Equipping |
Only after I read the book _______ why she devoted all her life to medical work for
Chinese women and children.
| A．I understood | B．had I understood |
| C．did I understand | D．I had understood |
It is ______ to improve the working conditions for the construction workers.
| A．worthwhile | B．worth | C．worthy | D．worthy of |