A:seated; playing
B:seating; playing
C:seat; play
D:seated; played
-Is this your key, Jenny?
-No. ____ is in my schoolbag.
①路漫漫其修远兮,吾将上下而求索②苟利国家生死以,岂因祸福避趋之③夕阳无限好,只是近黄昏④天行健,君子以自强不息