شرکت در آزمون آنلاین
زبان انگلیسی 1
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زبان انگلیسی 1
| آزمون شماره 13357
What does the underlined word “useful” mean?
A: I don’t know why you have stopped the whole project.
B: We have to wait to see how things . . . before we take an appropriate action.