Topics: Vocabulary
A research method that involves conducting observations and collecting data in a natural setting.
A. field study
B. observation
C. trials
D. experiment
Select your answer:
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Perfect Tenses › ViewHe (has studied / had studied) French for ten years before he moved to Canada.
A. has studied
B. had studied
Grammar TOEFL › View
The shipment of logs _____ because of the bad weather.
A. they have been postponed
B. being postpone
C. been postponed
D. has been postponed