摘要：27．-Shall Mary come and play computer games? -No, she has finished her homework. A．when B．if C．unless D．once
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--Shall Mary come and play computer games?
--No,__________ she has finished her homework.
|
A．when |
B．if |
C．unless |
D．once |
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--Shall Mary come and play computer games?
--No,__________ she has finished her homework.
| A．when | B．if | C．unless | D．once |
—Shall Mary come and play computer games?
—No, ________ she has finished her homework.
[ ]
A．when
B．if
C．unless
D．once