A、 in
B、 to
C、 with
D、 at
答案:A
A、 in
B、 to
C、 with
D、 at
答案:A
A. his
B. her
C. their
D. your
A. 19
B. 20
C. 21
D. 22
A. which
B. when
C. whether
D. since
A. twenty-five
B. the twenty-five
C. twenty-fifth
D. the twenty-fifth
A. repeat
B. forget
C. receive
D. join
A. {x|-2<x<2}
B. {x|x>2或x<-2}
C. {x|-2≤x<2}
D. {x|x≥2或x<-2}
A. educate
B. be educating
C. have educated
D. be educated
A. can
B. must
C. should
D. is supposed to
A. 2x+1
B. 2x-3
C. 2x-5
D. 2x-7
A. sad
B. sadness
C. saddest
D. sadly