Dialogue 2 Mr. Black is going to have a blood test before the operation. You are the nurse in charge of taking some blood from his arm. N: Good morning, sir. How about your sleep last night? P: Not bad. N: Now, I’ll __1_____(采血)from your arm first. Please ___2___ (脱下)your coat and ___3____(卷起衣袖), ___4____(握紧拳头). All right! Please open your hand. Press here with this bit of ___5_____ (棉签)for a while.