按要求完成句子 11.my eraser is in the pencil box.(对in th

按要求完成句子 11.my eraser is in the pencil box.(对in th
e pencil box提问)
____is_____eraser?
12.his book is on the desk.(改为一般疑问句)
____ _____book on the desk?
13.these are English books.(改为单数句)
______ _____ _____English book.
14.where are my pencils?(将答语补充完整)
______ _____ in your pencil case.
15.is the basketball under your chair?(作否定回答)
______,______ ______.