Yes.
"Guess who we saw today" is a command, and is considered acceptable grammar. actually, that person is wrong. It is actually incorrect. Though it is a command, since the person "who" is the direct object and is not the subject, it would then be changed to whom. So the correct answer would be, "Guess whom we saw today." I know, strange sounding, but it is grammaticaly correct.
No, it is more correct to say, "What day is it today?"
Well, "I saw you today" would work just fine.
It is grammatically correct to say , "I am in school today." This is because you are in the building, not at the building.
The correct phrase is "I saw it." "I seen it" is not grammatically correct; "seen" is the past participle form of "see" and is used with a helping verb (e.g., "I have seen it").
You say her in a sentence like: I saw her at the park (instead of I saw Ellie May at the park).You say she in a sentence like: She saw me at the park, or She went to the park today.
Te vi hoy.
saw. Today, I see a tree. Yesterday, I saw a tree.
If she were here is the answer. 'If she Were Here' is the correct answer but I guess both can be accepted.
Yes, "starting from today" is correct. It indicates that something is beginning on the current day.
Yes.
"Did you saw a film last weekend?" is incorrect.The correct way is to say "Did you see a film last weekend?"
Absolutely not correct. You should say "Did you see him yesterday?"