In Britain, the summer holidays or summer ________ is from June to October.
A. festival
B. vocation
C. vacation
D. parade
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You will be ________ if you hide in that cave.
A. safe
B. noisy
C. security
D. living
Madam Curie is a very famous ________.
A. hero
B. science
C. scientific
D. scientist
“I’m afraid I can’t come after all.”“Well, in that ________ I’m not going either.''
A. matter
B. situation
C. occasion
D. case
He bought a ________ of shoes yesterday, didn’t he?
A. sock
B. group
C. pair
D. soap