In autumn, many green ________ change to yellow, orange or red. 
#29501
A
leaves
B
birds
C
clouds
D
beaches
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       is the largest freshwater lake in China.
#29529
A
Dongting Lake
B
Poyany Lake
C
Qinghai Lake
D
Hongze Lake
 His favourite _____ is science.
#28068
A
colour
B
subject
C
friend
D
book