【题目】I showed the book to Tina ______ I borrowed from the public library.
A.when
B.who
C.which
D.whose

【题目】Dear friend, I ______ on a train to Fudan University when you read this letter.
A.will sit
B.sit
C.will be sitting
D.have sat

【题目】Anyone ______ boarding with knives would be stopped by security inspectors.
A.being found
B.found
C.finding
D.to find

A.recognizeB.relyC.recommendD.realize

【题目】Magic shows are entertaining ______ the audience does not discover how the tricks are done.
A.so that
B.as long as
C.as if
D.ever since

【题目】Be careful ______ you'll make fewer mistakes.
A.or
B.as
C.and
D.but