I have a tight budget for the trip, so I"m not going to fly _ the airlines
题型：不详难度：来源：
I have a tight budget for the trip, so I"m not going to fly _ the airlines lower ticket prices.| A．once | B．if | C．after | D．unless |
|
答案
| D |
解析
试题分析：本题考查时间状语从句以及连接词的意义，句意：我这次旅行预算很紧，所以除非航空公司降低机票价格，否则我是不会乘坐飞机的，所以答案为D。
点评：这几个连词的意思完全不同，结合句意就可以做出，学生可能会因为句子意义没有看懂或者对连接词的意义混淆而选错。 ~ |
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