I won't tell her the answer until she ___ on it for two hour
I won't tell her the answer until she ___ on it for two hours.
A.had worked
B.has been working
C.will have worked
D.will have been working
thank you
A.had worked
B.has been working
C.will have worked
D.will have been working
thank you
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1年前4个回答
你能帮帮他们吗