问题
选择题
146. What a pity it is that Bob ______ the habit of smoking at such an early age!
A．developed into
B．slid into
C．switched into
D．slipped into
答案
B
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146. What a pity it is that Bob ______ the habit of smoking at such an early age!
A．developed into
B．slid into
C．switched into
D．slipped into
B
