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
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