41. __________, nearly one-half rated their summer experience the same quality as that during the regular year; one-third rated it better. (A) A 1994 study of undergraduate students (B) In a 1994 study of undergraduate students (C) Of a 1994 study of undergraduate students (D) At a 1994 study of undergraduate students

48. In which of the following sentences is the punctuation correct? (A) If things go wrong, it must be a personal, human error, the result of fingering, tampering, a button getting stuck, someone hitting the wrong key. (B) If things go wrong it must be a personal, human error, the result of fingering, tampering, a button getting stuck, someone hitting the wrong key. (C) If things go wrong: it must be a personal, human error, the result of fingering, tampering, a button getting stuck, someone hitting the wrong key. (D) If things go wrong, it must be a personal, human error, the result of fingering, tampering, a button getting stuck someone hitting the wrong key.

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