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【单选题】
对阴道描述正确的是A.
是女性外生殖器官
B.
内表面是单层扁平上皮
C.
可形成阴道穹
D.
周围腔壁长短一致且没有伸展性
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皮皮学刷刷变学霸
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【单选题】--- I rang you at about ten, but there was no reply. --- Oh, that was probably _____ I was seeing the doctor. [ ]
A.
for
B.
why
C.
when
D.
how
【单选题】－ Must I show you how to operate themachine? － Oh, thank you. I __________ how todo it.
A.
had wondered
B.
would wonder
C.
was wondering
D.
did wonder
【单选题】— Jack and I will celebrate our 20th wedding anniversary next month. — Oh, ________________________
A.
cheer up!
B.
well done !
C.
congratulations!
【单选题】-You were not in when I came over to your house. -Oh, I ____________ for a friend from England at the airport.
A.
was waiting
B.
had waited
C.
am waiting
D.
have waited
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