(单选题) -What did you do last night,Bob?
-First I did my homework,and then I played ______ piano for half ______ hour.(本题2.0分)
A、 the;a
B、 /;an
C、 the;an
D、 a;the
出自:大连工业大学-大学英语3

完成拼图验证

按住下方滑块,将拼图拖到缺口处后松开。

拼图背景,将小拼图拖到缺口处
向右拖动滑块