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單項選擇題

The student found the novel（） It provided him with so much information about the subject.

A.enlightening
B.confusing
C.frustrating
D.delighting

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單項選擇題

A baby might show fear of an unfamiliar adult,（）he is likely to smile and reach out to another infant.

A.if
B.wherever
C.so that
D.whereas

單項選擇題

（）with the size of the whole earth, the highest mountains do not seem high at all.

A.If you compare
B.Compare them
C.When compared
D.A comparison