单项选择题

______ he comes, we will be able to go.

A．Without
B．Unless
C．Except
D．Even
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Was it is 1969 ______ the American astronaut succeeded ______ landing on the moon
A．when, on
B．that, on
C．where, in
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Is this the restaurant ______
A．which you work
B．in which you work
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