I ___________ to phone her all day, but whenver I phone her, the line is engaged.
| A．tried | B．had been trying | C．have tried | D．have been trying |
相关试题
Thank you for all your hard work last week. I don’t think we ______ it w
ithout you.
| A．can manage | B．could have managed |
| C．could manage | D．can have managed |
For many cities in the world, there is no room to spread our further, ____ New York is an example.
| A．for which | B．in which | C．of which | D．from which |
____ well prepared you are , you still need a lot of luck in mountain climbing.
| A．However | B．Whatever | C．No matter | D．Although |
In many places in China, bicycle is still poplar means of transportation.
| A．a; the | B．/; a | C．the; a | D．the; the |
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