He is tired.He is on the s().It's seven o'clock.They are at t().All of his toys are in the d().

问题描述:

He is tired.He is on the s().It's seven o'clock.They are at t().All of his toys are in the d().

sofa(on the sofa,在沙发上)
table (at table,在餐桌旁)
desk.(in the desk,在桌子里)