—Some Chinese students find it difficult to understand native speakers when in London.
—Exactly, they’ve learned a lot about grammar and known many words.
A. if only
B. now that
C. even if
D. as if
网友回答
A. if only
B. now that
(答案→)C. even if
D. as if
解析：考查连词：A.if only但愿B.now that 既然C.even if既然D.as if好像，句意：--当在伦敦的时候一些中国学生发现很难理解当地人。--确实，即使他们学了很多语法和单词。选C。