Hello again!
some doubts about the use of DURING, which of the following sentences are correct?
1a) I personally practiced classroom learning the last semester
or
1b) I personally practiced classroom learining DURING the last semester
2a) I really enjoyed sharing my time with nice people DURING THE preparation of the exams
2b) I really enjoyed sharing my time with nice people DURING preparation of the exams
2c)I really enjoyed sharing my time with nice people BY preparing the exams
thanks!
Alex