It’s not _______ for all kinds of fishes to live without water.
| A．possible | B．friendly | C．natural | D．important |
-- ____? --Yes, it is.
| A．Is Bob a boy? | B．Are you ten? | C．Is your pen blue? | D．Is she here? |
Jane and I ____ twelve. My sister ____ ten.
| A．is , is | B．is , are | C．are , is | D．are , are |
--Is your father a teacher? -- ____.
| A．Yes, she is. | B．Yes, you are. | C．Yes, he is. | D．Yes, I am. |
This is ____ orange book and that is ____ apple.
| A．a , an | B．an , a | C．an , an | D．a , a |
-- ____. Are you Bob? --Yes, I am.
| A．Good morning. | B．Excuse me. | C．Nice to meet you. | D．OK. |