一、单选题1Must I hand in the homework right now?Thats the rule. AYes, you can. BNo, you cant.CYes, you must. DNo, you mustnt.2You dont look well, you _ see the doctor.Aought to Bmay Ccan Dmight3What a beautiful day! You _ take your umbrella at all.Aneednt Bmustnt Ccant Dmay not4I saw Susan in the library just now.No, it _ be her. She went to Shanghai this morning.Amustnt Bcant Cshouldnt Dneednt5Where is Miss Li?
