21.   If criminal activities are clearly involved, then the researcher has an ethical problem.

22.   If it has to be backed up by close supervision and control a point May be reached where such activities are self-defeating.

23.   If the explosive activity is more or less continuous, then clearly ash will rise continuously.

24.   In any case, human activity was not the only factor in the observances.

25.   In countries where these activities are popular, they are normally included as sports in sports participation surveys.

26.   Inaugural activities were in full swing Saturday despite the cold.

27.   Intellectual and biological activity are both part of the overall process by which an organism adapts to the environment and organizes experience.

28.   Its only activity is to receive and pay dividends.

n. + be >>共 1635
problem 0.82%
people 0.79%
company 0.71%
result 0.67%
thing 0.63%
report 0.57%
question 0.56%
official 0.55%
time 0.53%
issue 0.48%
activity 0.07%
activity + v. >>共 478
be 30.88%
include 5.60%
remain 2.56%
increase 2.23%
continue 2.00%
slow 1.91%
take 1.91%
pick_up 1.61%
have 1.43%
come 1.19%
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