Mr. Wang teaches English in a middle school. He likes his work very much. He wanted【C1】___

___a teacher even when he was a young boy. There are six classes in a school day at Mr. Wangs middle school. Mr. Wang teaches five of these six classes.【C2】______his "free" hour from 2 to 3 in the afternoon, Mr.Wang【C3】______meet with parents , check students homework and【C4】______many other things. So Mr. Wang works hard from the moment he gets to school early in the morning until heleaves for home late in the afternoon, and his "free" hour is not free at all. In his English lesson, Mr. Wang sometimes teaches poems (诗). He likes poems very much, and he likes Li Bais poems【C5】______of all. In his fifth class today, Mr. Wang taught a poem. He wrote the poem on the blackboard and read it. As soon as he finished【C6】______the poem, the students began to ask questions. He answered all the questions. Then he asked his students to talk about the poem.【C7】______one wanted to stop when the bell rang.【C8】______ home, Mr.Wang thought about the fifth class. He was happy about what he did as a teacher. Every one of his students【C9】______ the poem. When they started to talk, they forgot about the time. He did not have to make them【C10】______ . He only had to answer their questions and help them understand the poem.

【C1】

A．was

B．being

C．to be

D．be