---- John ,why are you so upset?
----I _________ my cellphone all morning but it is nowhere to be found.
| A．am looking for | B．have looked for |
| C．have been looking for | D．had looked for |
相关试题
The lecture on how to enjoy pop music is really worth_____.
| A．very; listening | B．well; listening to |
| C．well; attending to | D．very; attending |
I’m sorry you’ve been 
waiting so long, but it’ll still be some time Brian gets back.
| A．before | B．since | C．till | D．after |
The day he was looking forward in the end.
| A．when; to coming | B．which; to coming |
| C．which; to came | D．when; to came |
After studying in a medical university for five years. Jack the job us a doctor in his hometown.
| A．picked up | B．set up | C．took up | D．made up |
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