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chair,desk,car,ball,on,在上,in,在里面,It is in the house.它在房子里面。,under,在下面,on,in,under,Where is the ball？,It is on the desk.,It is under the chair.,It is in the box.,a desk,Its on the desk,Its on the chair,Its in the desk,Its under the desk,Its under the chair,Its near the desk,Its near the chair.,in,on,under,in,on,under,on the table,under the table,Where is the.?,Its,
