I_____playing in the garden with Tom.(a)is(b)are(c)am(d)be

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I_____playing in the garden with Tom.(a)is(b)are(c)am(d)be

c
be动词+ doing
主语为I,后面用am

C

Tom and I_____playing in the garden.(a)is(b)are(c)am(d)be I_____playing in the garden with Tom.(a)is(b)are(c)am(d)be in the in the in the in the in the in the in the in the in the in the in the in the in the in the in the in the