问题
Early experiences taught me not to be overly _ about shopping by mobile phone because there is a high risk of being cheated.
A:particular
B:enthusiastic
C:cautious
D:casual;
B:enthusiastic
C:cautious
D:casual;
正确答案是：
同类题型
Shall we go and ______ hello to the old man —Good idea! Let’s go.
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___ can I get to the ABC bank — You can take a bus or a taxi.
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This problem is so tough that only______students can solve it.