I have lost my whitehat. I______ it somewhere.
A.must be dropping
B.must have dropped
C.must have been dropped
D.must drop
A.must be dropping
B.must have dropped
C.must have been dropped
D.must drop
第3题
A.were walking
B.to have walked
C.walk
D.walking
第4题
I can't find the key to my office. I ______ have lost it on my way home.
A.would B.should C.must D.ought to
第5题
Where is my pen? I ______ it.
A. might lose
B. would have lost
C. should have lost
D. must have lost
第6题
A. have missed track
B. have kept track
C. have lost track
D. have a track
第7题
A.it
B.one
C.this
D.that
第8题
A.were walking
B.to have walked
C.walk
D.walking
第9题
A.might have
B.would have lost
C.should have lost
D.must have lost
第10题
I’m sorry ______ my temper.
A.to have missed
B.to have omitted
C.to have lost
D.to have dropped
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