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【简答题】
Don't always ___________ (抱怨) to your superior ___________ the difficulties during the work.
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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】Some opinions are based on _________ or prejudices. 词义提示： a fixed general image or set of characteristics that a lot of people believe represent a particular type of person or thing. 根据给出的词义选出恰当的单词填空。
A.
model
B.
opinion
C.
stereotype
【单选题】Don't complain (抱怨) too much. Everything________for a reason.
A.
happen
B.
happens
C.
happened
D.
happening