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They're getting _____ Hong Kong tomorrow.    
[     ]
A. at
B. in
C. to
D. /
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科目：初中英語 來源：初中課程新學案　七年級英語(上) 題型：023

用am，is或are填空，然后總結(jié)其用法。

(1)That's my father and this ________ my mother.

(2)This is my cousin and that ________ my sister.

　　(3)－________she your sister?

　　－Yes, she ________.

　　(4)－And ________ he your brother?

　�。璑o. He's my friend.

　　(5)－________ Guo Peng your brother?

　　－Yes, he ________.

(6)I ________ his friend. I'm not his brother.

　　(7)－________ you Jack's brother?

　�。璑o, I'm not. I ________ his cousin.

(8)These ________ my grandparents.

　　(9)－________ this your aunt?

　�。璝es, it ________.

(10)These ________ my parents, those ________ my grandfather and grandmother.

(11)These are my brothers. They ________ Jeff and Jack.

(12)They aren't my sisters. They ________ my friends.

am用于第一人稱單數(shù)I之后；is用于第三人稱單數(shù)ge，she，it以及相當于he，she或it；are用于第二人稱或所有人稱的復(fù)數(shù)，表達“是”的意思。可用下面的口訣來幫助記憶：“我用am你用are，is用于他她它，復(fù)數(shù)全都要用are”。

I am…可以縮寫成I'm，he is可以縮寫成 he's，she is可以縮寫成加she's，it is可以縮寫成it's，而we are，you are，they are可分別編寫成we're，you're，they're。am，is，are的否定形式是在后面加not，如：am not，is not，are not。is not通�？s寫為isn't，而are not通常縮寫為aren't。如：

(1)I'm Alice, I'm not Mary. She's Mary.

(2)This isn't my brother. He's my cousin.

(3)They're my brothers. They aren't my friends.

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