B .
①Are they under the table?
②My mother is in the kitchen.
③Is she in the living room?
④Where are my glasses?
⑤No, they aren't.They are in the door.
⑥My sister is in her bedroom.
B .
——不, 他们不在。/是的, 他们在。
——钥匙在哪儿?
——它们在门上。