Answer: The teacher had been monitoring class attendance. The teacher had not been monitoring class participation. How many of the students were actually prepared to take the test was uncertain. How many of them had been attending class was certain. This is why it was important for the teacher to monitor both class participation and attendance.
Explanation:
The mood is conveyed by the choice of words as in simple casual speech or difficult, more formal words, the tone of the writers is something to consider also
I’m pretty sure it’s admire because it’s not discourage or display because those don’t make sense :)