问题
选择题
Serena is a bank clerk. Her work is relaxing but _____ boring. [ ]
A. a kind of
B. kind of
C. kinds of
D. all kinds of
答案
B
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Serena is a bank clerk. Her work is relaxing but _____ boring. [ ]
A. a kind of
B. kind of
C. kinds of
D. all kinds of
B