1 won’t call you, ________ something unexpected happens.A．unlessB．whetherC．beca
题型：不详难度：来源：
1 won’t call you, ________ something unexpected happens.| A．unless | B．whether | C．because | D．while |
|
答案
| A. |
解析
| unless表示“除非、如果不是”。根据意思可得。 |
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