| A．What | B．Where | C．It |
| A．am | B．is | C．are |
| A．on | B．at | C．under |
( )| A．sister | B．brother |
（ ）| A．Look at the two cats. | B．Look at the two dogs. |
（ ）| A．He is my mother. | B．He is my father. |
（ ）| A．It's a girl. | B．It's a boy. |
| A．in | B．on | C．under |
| A．Yes, they are. | B．No, they aren't. |
| A．Three. | B．Four. |
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