1) I have.....reading this book since 4 o'clock. a) being b) been c) be d) not 2) .....he been painting the room all day? a) Have b) Is c) Has d) Are 3) .......they been playing on the field behind the house? a) Hasn't b) Aren't c) Isn't d) Haven't 4) Mary has been.....the giutar since she was a child. a) playing b) play c) played d) not playing 5) Who has been .....my toothbrush? a) used b) using c) use d) not used 6) I am dirty because I .....been riding my bike in the rain. a) has b) was c) have d) had

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