摘要：5．Play, often as an activity for younger children, is still important in the social development of teenagers. A．to see B．seeing C．to be seen D．seen
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Play, often ______ as an activity for younger children, is still important in the social development of teenagers.
| A．to see | B．seeing | C．seen | D．to be seen |
Play, often ______ as an activity for younger children, is still important in the social development of teenagers.
A．to see B．seeing C．seen D．to be seen
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Play, often ________ as an activity for younger children, is still important in the social development of teenagers．
- A.to see
- B.seeing
- C.to be seen
- D.seen