题干
You ______go and ask Lily . She ______know the answer.
A：must, ca
B：must, may
C：need, ca
D：can, may
答案(点此获取答案解析）
D
A：must, ca
B：must, may
C：need, ca
D：can, may
则满足不等式
的
的取值范围为( )
