It is wise for the observer not to take part in the activity observed at all time.
举一反三
- Time is money! We should ______ our time. A: be fit for B: make a good use of C: play a part of D: take the place of
- There is still ______ time left. Take your time.
- All in all, students should be encouraged to take part in activities.
- An important part of interview preparation is to take the time to analyze the ( ) .
- How many people are going to _______________ that project? A: take part in B: take your time C: take photos