My sister met him at the street yesterday afternoon, so he __________ your lecture.

---Mr. Wu, can I have a look at the scores?---Well, you are a senior, so I_____ hardly remind you that the scores are not open to students.

— Professor Smith, some students want to have a talk with you. ___ they wait here or outside?— Show them in now, please.

One of our rules is that every student       wear school uniform while at school.

—Can you tell me what to wear at the party?—If I            you, I            the blue jeans.