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Question 19: A. the new groups are doing some tests of drugs now B. which the lazy people had done many kinds of work too C. the main users...
Đề bài
Question 19:
A. the new groups are doing some tests of drugs now
B. which the lazy people had done many kinds of work too
C. the main users did lots fewer of those at once
D. where the same people did both types of tasks as well
