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By the time the course ends_________, a lot about the culture of this country.
A. we'll learn
B. we are learning
C. we have learnt
D. we'll have learnt
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A. we'll learn
B. we are learning
C. we have learnt
D. we'll have learnt
A.Event Time
B.Processing Time
C.Ingestion Time
D.Party Time
A.for a time
B.for some time
C.at a time
D.in time
They will have it finished in ______.
A.three quarter of an hour time
B.three quarters of an hour time
C.three quarter of an hour's time
D.three quarters of an hour's time
A.C check and D check need same time
B.C check need more time
C.D check need more time
A.what their CEO was volunteering time for community service
B.that their CEO was volunteering time for community service
C.that was their CEO volunteering time for community service