(2013·西安模拟)The man we followed suddenly stopped and looked as if
whether he was going in the right direction.
| A．seeing | B．having seen |
| C．to see | D．to have seen |
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(2013·西安模拟)The man we followed suddenly stopped and looked as if
whether he was going in the right direction.
| A．seeing | B．having seen |
| C．to see | D．to have seen |
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