－Must we leave now?－No, we ________. We still have two more hours.

— It’s the classroom! So you ______ know eating is not allowed here.— Oh, sorry.

—Jenny，how did your math exam go?—I thought I ________，but in fact I came in the top 10% in the class.

—Look at the picture on the wall. It ________be David’s.—Yes, his name is on the first page.

--- Where are we to hold the conversation? --- We’ll go to a quiet place and no one _____ disturb us.