After filling all of the sample containers, the students returned to their classroom where several microscopes were placed on la
b desks by the students. A.
After filling all of the sample containers, the students returned to their classroom and placed several microscopes on lab desks.
B.
All of the sample containers were filled by the students, and then the students returned to their classroom and placed several microscopes on lab desks.
C.
After filling all of the sample containers, the students returned to their classroom where several microscopes were placed on lab desks.
