1.A number of factors are accountable for this situation.
A number of factors might contribute to (lead to )(account for ) the phenomenon(problem).
2. The answer to this problem involves many factors.
3. The phenomenon mainly stems from the fact that...
4. The factors that contribute to this situation include...
5. The change in ...largely results from the fact that...
6. We may blame ...,but the real causes are...
7. Part of the explanations for it is that ...
One of the most common factors (causes ) is that ...
Another contributing factor (cause ) is ...
Perhaps the primary factor is that
But the fundamental cause is that ...
2016-2017学年高一英语上学期课时检测卷18
Under the sea教案6
七年级英语上学期语法练习题7
2016-2017学年高一英语上学期课时检测卷9
江苏省泰州中学2016-2017学年高二英语上册第一次月考试题
2016-2017学年高一英语上学期课时检测卷20
2016-2017年八年级英语上册单元随堂练习题38
2016-2017年八年级英语上册单元随堂练习题37
七年级英语上学期语法练习题8
2016-2017学年高一英语上学期课时检测卷23
江苏省无锡江阴市2016-2017学年高二英语上册期中考试题
2016-2017学年高一英语上学期课时检测卷6
Under the sea教案8
江苏省宝应县2016-2017学年高二英语上册期中考试题
2016-2017学年高一英语上学期课时检测卷19
2016-2017学年高一英语上学期课时检测卷7
七年级英语上学期语法练习题3
2016-2017年八年级英语上册单元随堂练习题36
2016-2017学年高一英语上学期课时检测卷5
2016-2017学年高一英语上学期课时检测卷27
2016-2017年八年级英语上册单元随堂练习题33
2016-2017年八年级英语上册单元随堂练习题39
2016-2017年八年级英语上册单元随堂练习题30
2016-2017学年高一英语上学期课时检测卷22
2016-2017学年高一英语上学期课时检测卷24
七年级英语上学期单元随堂练习题66
2016-2017年八年级英语上册单元随堂练习题35
2016-2017年八年级英语上册单元随堂练习题41
Under the sea教案1
2016-2017学年高一英语上学期课时检测卷28
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