_______ pairs are pairs of words which have only one sound different from each other.
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导游着装应注重服装色彩的搭配。一般来说,( )是服饰搭配最常见的三种颜色,它们是最容易与其他颜色的服装搭配并产生良好的视觉效果。
A. 黑、黄、白
B. 黑、灰、白
C. 黑、蓝、白
D. 黑、青、白
The most important thing in practising stress is making the students aware of _____ to stress the word or phrase.
年龄大些的人喜欢着深色()以显成熟稳重。
A. 张杨款
B. 前卫款
C. 保守款
D. 时尚款
The realistic goal of teaching pronunciation should be: _________, ________ and communicative efficiency.