Mr. Smith, I should tell you this is the fifth time you ______ me for my twin sister.
#100248
A
have mistaken
B
are mistaking
C
mistook
D
are mistaken
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My house _____ when you visited Beijing last time, so I didn’t invite you to my home. 
#101211
A
was being decorated
B
is being decorated
C
has been decorated
D
was decorated
—The former president of Iraq was caught at last.—Really? Where     himself?
#104842
A
has he hidden
B
had he hidden
C
was he hidden
D
has he been hidden
--- Linda, why not drive Zhongshan Road?--- It’s blocked because a subway ______ there.
#100629
A
is being built
B
has built
C
was building
D
will be built