| A．swimming | B．swiming | C．swim |
| A．do | B．were | C．did |
| A．reads | B．reading | C．read |
| A．Do | B．Are | C．Did |
| A．I reading the book now. |
| B．I am reading the book now. |
| C．I read the book now. |
| A．What are you doing last week? |
| B．What do you do last week? |
| C．What did you do last week? |
| A．I send you a birthday card yesterday. |
| B．I am sending you a birthday card yesterday. |
| C．I sent you a birthday card yesterday. |
| A．你收到你祖父母的礼物了吗？ 2. I bought some vegetables for my grandma. | B．波利吃了一些蔬菜。 3. Where did you go yesterday? | C．我为我的祖母买了一些蔬菜。 4. Polly had some vegetables. | D．昨天晚上你干什么了？ 5. Did you get your grandparents' present? | E．你昨天去哪儿了？ |
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