-- Mary, do you know if Mike to my party next week?-- I think he will come if he ______ free.A. will come; will beB. will come; isC. comes; is
-- ____ your mother have big eyes? --Yes, she ____.
-- ____? --Yes, it is.
Jane and I ____ twelve. My sister ____ ten.
--Is your father a teacher? -- ____.
This is ____ orange book and that is ____ apple.