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