慢性肺脓肿空洞可以是()
A.圆形
B.椭圆形
C.不规则形
D.多房性
E.以上都是
参考答案:E
When we got to there, the host _____ his speech and the performance __________.
A.has finished; began
B.had just finished; had begun
C.had just finished; was about to begin
D.just finished; began
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