Since 1992, the team has been carrying out _________ into the effects of human activity on wildlife.( )
A: research
B: study
C: experiment
D: trial
A: research
B: study
C: experiment
D: trial
举一反三
- Since 1992, the team has been carrying out _________ into the effects of human activity on wildlife.
- the team has been carrying out
- Research on how to protect the environment has been ____ at the University of Leeds. A: carrying out B: carried out C: carrying back D: carried back
- 6. The team is carrying out research to find out the impact on children of their parents.(separation)
- The team has been working overtime on the research project ____.