My school is new and big.My teachers are very kind.
我的学校又大又新,我的老师们很和蔼可亲.
A:Jeff,is this your watch?
B:Oh,no ,it's not mine .It ' s Mr King 's watch.
C :Oh ,yes ,it's my watch （mine）.Thank you .
A：You ' re welcome.
（ C)Put the letters ____the biackboard.
A in B at C on