问题描述：
fill in the blanks with the correct form of verb to be e.g.I am not an actor .I am too shy .
dan () at the supermarket .he wants to buy some drinks.
my mum ()well.she has a headache .
they ()from our school .they go to the one across the street .
the earth () flat .it is round .
i () japanese .i come from tokyo .
lisa and joe () friends .they dont like each other .
you () a good singer .you sing very well.
dan () at the supermarket .he wants to buy some drinks.
my mum ()well.she has a headache .
they ()from our school .they go to the one across the street .
the earth () flat .it is round .
i () japanese .i come from tokyo .
lisa and joe () friends .they dont like each other .
you () a good singer .you sing very well.
问题解答：
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