15.听短文,根据短文内容,选择正确答案.
16.David was略when he went to middle school.
A.12 B.13 C.14
17.When he was in the first year of middleschool,David always略.
A.took the bus to school B.went to school by bike C.ran to school
18.David got his computer from略.
A.theschool B.his parents C.himself
19.After he got the computer,略.
A.David'sgrades (分数) were not so good as before
B.David's grades were better than before
C.David studied as hard as before
20.David felt略when he heard his mother's words.
A.bored B.happy C.sorry.