1、题目118:--Mr.Wang,must I come again to clean the classroom on Sunday? --No,you ().I have asked Kate to do it
A. can＇t
B. musn＇t
C. needn＇t
D. shouldn＇t
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1、题目47:There are lots of () that students have to follow in school.
A. exercises
B. problems
C. skills
D. rules
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1、题目94:Christmas Day is on () of December.
A. twenty-five
B. the twenty-five
C. twenty-fifth
D. the twenty-fifth
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1、题目29:已知正项等比数列{an}中,a1=1,a3=4,则此数列前3项和为( )
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1、题目36:I will try my best to stop my son from () the same mistake.
A. make
B. made
C. makes
D. making
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1、题目21:已知函数f( )=lg(x+1),若f( )=1,则a=()
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1、题目49:等差数列{an}的前3项和为15,且a1=2,则a2=( )
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1、题目30:下列命题:①空集没有子集;②任何集合至少有两个子集;③空集是任何集合的子集;④若∅真包含于集合A,则A≠∅.其中正确的有( )
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1、题目5:tan(450)=( )
A. 0.5
B. -1
C. -0.5
D. 1
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1、题目113:--Your name again?I () catch it. --Henry Smith.
A. don＇t
B. didn＇t
C. wouldn＇t
D. won＇t
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