37. Mathematical puzzles are common into history because they have been used a
A B C
intelligence tests and amusements.
D answer: B into------------to but I do not understand how "a" match " tests and amusements".
40. The Montessori method of education stresses initiative and self-reliance to permitting
A B
pupils to pursue independently whatever interests them, but within disciplined limits.
answer: B to permitting-------------to permit
1) what the difference between what and whatever??
2) 怎样判断 “ to ” 是介词还是动词不定式?
请赐教!!感谢万分!!
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