题目内容
16、Tracy knows very well how to play piano．
A．/ B．a C．an D．the
评卷人
得分
三、完型填空
（每空？ 分，共？ 分）
试题答案
16、D
Tracy knows very well how to play piano．
Tracy knows very well how to play ________ piano.
[ ]
A
B
C
D