| A．Dogs are clever. | B．Dogs are useful. |
| A．There is a TV show about dogs. | B．There is a TV show about blind men. |
| A．Dogs helped the firefighter. | B．Dogs helped the deaf girl. |
| A．Can we have a dog? | B．Can we have a hot dog? |
| A．helps | B．help | C．helping |
| A．am | B．be | C．is |
| A．at | B．from | C．to |
| A．well | B．help | C．useful |
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