题目内容：
We've been through some rough times together.A．long
B．happy
C．difficult
D．short
参考答案：
答案解析：
单选题：We've been through some rough times together.
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A．long
B．happy
C．difficult
D．short
A．long
B．happy
C．difficult
D．short
Obesity and alcohol consumption may also lead to some other
Obesity and alcohol consumption may also lead to some other diseases.A．Right B．W
The two banks have announced plans to merge next year.
The two banks have announced plans to merge next year.A．combine B．close C．break
A. untilB. whileC. beforeD. although
A. untilB. whileC. beforeD. although
Which is probably NOT true of lung cancer?
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Her father was a quiet man with graceful manners.
Her father was a quiet man with graceful manners.A．polite B．similar C．usual D．ba