Mary is looking for the book she lost yesterday.()

单项选择题Sometimes it is advisable to book hotels in advance.()

A. possible
B. profitable
C. easy
D. wise

单项选择题The kind of thing that happened last Saturday night is a regular occurrence in the village.()

A. event
B. presence
C. development
D. endeavour

单项选择题The fact that he has been quite frank in admitting his mistakes counts a lot to his credit().

A.matters
B. estimates
C. explains
D. suspects

单项选择题Recent discoveries in Montana indicate that some dinosaurs may have resided in colonies().

A. lived
B. died
C. hunted
D. fed