—— The experiment is of particular importance.
—— I see. We won’t carry on with it _______ we can get the good equipment.
A.until | B.unless | C.whether | D.after |
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—— The experiment is of particular importance.
—— I see. We won’t carry on with it _______ we can get the good equipment.
A.until | B.unless | C.whether | D.after |