| A．do | B．does | C．did |
| A．Where did your grandpa work? | B．Where do you work? | C．Where did your father work? |
| A．What did she drive? | B．What do you do now? | C．What did he do? |
| A．What does she do now? | B．What did he do before? | C．What does he do? |
| A．teacher | B．teach | C．teaches |
| A．He played Chinese music. | B．He plays Chinese music. |
| A．on | B．at | C．in | D．of |
| A．i; h | B．i; b | C．h; i |
| A．a; e | B．i; e | C．i; i |
| A．a; e | B．a; / | C．o; e |
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