People often go to swim in ____ summer.
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What ____ good idea it is!
A. a
B. an
C. the
D. /
____ interesting film! We all like it very much.
A. What an
B. What a
C. How a
D. How
There's ____ orange tree behind ____ house
A. an; the
B. a; a
C. the; the
There is a book on the desk and ____ book is Meary's.
A. or
B. a
C. The