Maybe fluency and skill in the English language is asking a bit much of DUpipo, but note the verb tenses Pam used:
demtenjeep (25,152 posts)
13. I begin my class school year giving my students this test all 100 questions
and I end the school year giving the same test. ...
The indicative present tense means she
has done this
and continues to do so. If it's something imagines doing in the future she would use the word "could" or "should".
And then she posts this muddle:
demtenjeep (25,152 posts)
16. they don't know much at the beginning
but I would bet 85% could answer all 100 questions at the end
The present indicative "know" suggests she has done this, but the subjunctive "I would bet" and conditional "could answer" means she has never done this. Otherwise she would use past indicative, something like "usually ##% were able to answer".
IOW, Pam's talking hypothetically, not of experience. Or should review 3rd and 4th Grade English.