问题
选择题
I have a Longman Dictionary of Contemporary English, which is an important ________ learning English.[ ]
A. aid in
B. aid to
C. help to
D. help at
答案
答案：A
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I have a Longman Dictionary of Contemporary English, which is an important ________ learning English.[ ]
A. aid in
B. aid to
C. help to
D. help at
答案：A