1. Five of the committee members will be unable to attend the next meeting. In my opinion, the meeting -------- ----. A. mustn’t be postponed B. ought be postponed C. should be postponed D. needn’t be postponed
 2 . Try to speak slowly when you give your speech. If you don't, some of your words -----------------. A. might be misunderstood B. must misunderstand C. should be misunderstood D. needn’t be misunderstood 3.Frank's wallet is lying on the coffee table. He _______ it here last night.
 A. must have left B. should have left C. must be leaving D. needn't leave
 HỨA VOTE 5 SAO + CTLHN Ạ ( GIẢI THÍCH)