Topics: Past Tenses
I _____ (clean) the windows when I _____ (slip).
A. was cleaning; slipped
B. cleaned; was slipping
C. was cleaning; was slipping
Select your answer:

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Contrastive Conjunction › ViewI love reading books, ……..my sister prefers listening to music.
A. And
B. While
C. But
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E. Therefore
Prepositions › View
It is very nice______ you to take so much trouble.
A. of
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C. for
D. from
