跟别人初次见面,应该说:A. How are you?B. Nice to meet you.C. How do you do?
eleven — five =_______A.fourB.six
one + six =___________A.sevenB.eight
nine ÷ three =________A.fourB.three
four × three =________A.eleven B.twelve
seven - five =________A.threeB.two