问题
选择题
— What is our head teacher like, do you know?
— Oh, he is very kind _____ he looks very serious. [ ]
A. because
B. though
C. if
D. when
答案
答案：B
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— What is our head teacher like, do you know?
— Oh, he is very kind _____ he looks very serious. [ ]
A. because
B. though
C. if
D. when
答案：B