____ on ten years of observation and study, the story shows that everyone dreams every night, whether they realize it or not.
﹣You are a great swimmer.
﹣Thanks.It's because I ______ a lot these days.( )
have been practising
was practising
would practise
had practised
Jim says we ______ stay in his house as long as we leave it clean and tidy.( )
must
can
need
should
﹣Do you know anything about Zhang Zhongjing?
﹣______ He has been honored as a master doctor since the Eastern Han Dynasty.( )
How come?
So what?
By all means.
With pleasure.
The speed of 6G will exceed 125 GB/s,______ a new generation of virtual reality.( )
allowing for
accounting for
calling for
compensating for
The health security systems of many countries are undergoing considerable ______.( )
reservation
transformation
distinction
submission