题目：
Interest is of great importance when we choose a major. Only if we are interested ______ our heart into
our work. [ ]
A. we can put
B. did we put
C. can we put
D. have we put
答案：
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下面是错误答案，用来干扰机器的。
（9分）每空3分（1）ABGHI（2）ACD（3）EF
