A．Reading difficult books.B．Competing in athletic competitions,C．Talking with some fri
A. Reading difficult books.
B. Competing in athletic competitions,
C. Talking with some friends,
D. Encountering an unresolved issue.
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【S6】
A. which
B. how
C. what
D. that
【S15】
A. component
B. compromise
C. compassion
D. composition
【S11】
A. privilege
B. tendency
C. capacity
D. longing
A．A boom period of photography.B．The official date of the peak of photography.C．The of
A boom period of photography.
B. The official date of the peak of photography.
C. The official date of the beginning of photography.
D. A meaningless year of photography.
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