词汇选项
John is collaborating with Mary in writing an article.
A、cooperating
B、competing
C、combining
D、arguing
【正确答案】 A
【答案解析】 collaborating：合作，协作。cooperating：合作，协作。两者意思相近。
词汇选项
John is collaborating with Mary in writing an article.
A、cooperating
B、competing
C、combining
D、arguing
【正确答案】 A
【答案解析】 collaborating：合作，协作。cooperating：合作，协作。两者意思相近。
