（重庆一中高三下第三次月考）14. An EU official stressed that effective measures could be taken, the future for Europe was indeed dark.
| A．until | B．unless | C．since | D．while |
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（重庆一中高三下第三次月考）14. An EU official stressed that effective measures could be taken, the future for Europe was indeed dark.
| A．until | B．unless | C．since | D．while |
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