摘要： -- I'd like to invite you to a party tomorrow evening. -- Thank you, but I'll be free I'm uncertain. A. while B. if C. when D. whether
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-- I'd like to invite you to a party tomorrow evening.
-- Thank you, but ______ I'll be free I'm uncertain.
|
A．while |
B．if |
C．when |
D．whether |
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-- I'd like to invite you to a party tomorrow evening.
-- Thank you, but ______ I'll be free I'm uncertain.
A. while B. if C. when D. whether
查看习题详情和答案>>-- I'd like to invite you to a party tomorrow evening.
-- Thank you, but ______ I'll be free I'm uncertain.
A. while B. if C. when D. whether
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