Please tell the function（s） of the underlined part（s） in each sentence.How many pairs of shorts should you and your brother bring（）
A. object
B. adverbial
C. subject
D. complement
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Please tell the function（s） of the underlined part（s） in each sentence.She imagined it easy to learn a language. What does the underlined part function as（）
A. adverbial
B. object
C. complement
D. predicate
下面的文法中属于LL（1）文法的是（）
A. G（S）:S → ABcA → a | eB → b | e
B. G（S）:S → AbA → a | B | eB → b | e
C. G（S）:S → ABBAA → a | eB → b | e
D. G（S）:S → aSe | BB → bBe | CC → cCe | d
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