| A．Do you often do exercise? |
| B．Does your grandma often do exercise? |
| C．Is your grandma doing exercise? |
| A．Hello. This is Mark. | B．Hello. I am Mark. |
| A．Whose pants are these? | B．Whose pants is it? |
| A．Where is the library? | B．Do you have a library? |
| A．What do you do on Sunday? |
| B．What are you do on weekend? |
| C．What do you do on the weekend? |
| A．Do your father play football? |
| B．Does your father play football? |
| C．Does your father play basketball? |
| A．I often see a film on weekend. |
| B．I will see a film on the weekend. |
| C．I often see a film on the weekend. |
| A．I often stay at home and do my homework. |
| B．I often stay at home and do housework. |
| C．I often stay at home and do some exercise. |
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