________ go to the park. (　　)

A．Lets

B．Let’s

C．Let’s me

连词成句。
1. they,  singing,  are,  a,  song(.)
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2. boy,  running,  is,  the,  the,  rain, in (.)
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3. my,  book,  at,  look(.)
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4. is,  the,  on,  plain,  the,  train,  is (.)
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5. Mother’s Day,  is,  May,  in(.)
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Cut the hamburger ________ two pieces and eat! （  ）

A．in

B．by

C．of

D．with

Look, read and write（T）or（F）：
Let's sit down! （______）

当你想请同学指向书桌时，你可以这样说：(    )

A．Point to the door, please.

B．Point to the desk, please.