The idea for the new machine came to Mr. Baker ______ to his invention recently.
| A．while devoting | B．while devoted |
| C．while he was devoted | D．while devoting himself. |
I cannot______ puzzled, for I simply cannot understand how I could have made such a stupid mistake.
| A．help feel | B．help but to feel | C．but to feel | D．help but feel |
I feel sure that ________ qualification， ability and experience，you are the most qualified one to do the job.
| A．in need of | B．in terms of |
| C．in favour of | D．in face of |
An earthquake ______ Yushu, China in April, 2010, _______ about 2000 deaths.
| A．occurred; affecting | B．occurred; causing |
| C．struck; affecting | D．struck; causing |
People who have _______ flood often say that’s _______ .
| A．experienced; terrifying experience |
| B．experimented; terrifying experience |
| C．experienced; a terrifying experience |
| D．experimented; a terrifying experience |
He was encouraged to start again _________ he had failed.
| A．where | B．in which | C．when | D．what |