______ there is a snowstorm or other bad weather ,the bus always comes on time.A
题型：不详难度：来源：
______ there is a snowstorm or other bad weather ,the bus always comes on time.| A．Because | B．if | C．When | D．Unless |
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答案
| D |
解析
| 题意：除非有暴风雪或者其他恶劣天气，那辆公共汽车总是按时到达。unless =" if" not “如果不，除非”。 |
举一反三
The teacher never wears anything other than a suit _____ the season.| A．whatever | B．wherever | C．whenever | D．however |
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John did the task____ his sister. | A．as good as | B．as better as | C．as well as | D．as best as |
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