单项选择题

A．Planning a sightseeing tour.
B．Writing to his uncle.
C．Arranging his class schedule.
D．looking through a language textbook.
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单项选择题
A．complexB．comprehensiveC．complementaryD．compensating
A．complex
B．comprehensive
C．complementary
D．compensating
单项选择题
A．inflatingB．expandingC．increasingD．extending
A．inflating
B．expanding
C．increasing
D．extending
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