The Bitcoin is a form of electronic money which has been created ___ for use on the Internet.
A. perfectly B specifically
C. extremely D. especially
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It is high time for us to take measures to protect these old traditions and customs before they
.
| A．die out | B．die away | C．die off | D．die down |
The lecture on how to enjoy pop music is reallyworth_____.
| 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 timeBrian gets back.
| A．before | B．since | C．till | D．after |
The dayhe was looking forwardin the end.
| A．when; to coming | B．which; to coming |
| C．which; to came | D．when; to came |
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