21. As ______ matter of fact, many people speak English in Asia as ______ foreign language.
A. the ; / B. a; a C. the; the D. a ; the
22. I suggested to my roommates that we ______ for a picnic, and all of them agreed.
A. had gone B. would do C. go D. went
23. I turned to bookstores and libraries seeking information about the book mentioned in his lecture, but found ______.
A. no one B. anything C. nothing D. none
