He was puzzled by this phenomenon. He began to try every approach _________ the best way of working it out.
| A．known to find | B．knowing to find | C．known finding | D．knowing finding |
相关试题
32. The man had expected to see all his relatives when in hospital, but _______ came to see him while many of his friends offered him their help.
| A．none | B．no one | C．someone | D．Anyone |
31. Due to circumstances ____ our control the performance has had to be cancelled.
| A．above | B．within | C．beyond | D．over |
30. Only those who have experienced hardship ____ well aware of what happiness means.
| A．can they be | B．they can be | C．can be | D．they can |
29. The time is not far away ___ the information will be made known ___ more workers will be trained for their jobs.
| A．until; which | B．when; that | C．before; that | D．as; which |
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