【2012安徽】27. The limits of a person’s intelligence, generally speaking, are fixed at birth, but ________he reaches these limits will depend on his environment.
A. where B. whether C. that D. why
【答案】B
【2012重庆】34. Evidence has been found through years of study______ children’s early sleeping problems are likely to continue when they grow up.
A. why B. how C. whether D. that
【答案】D
