I wanted to ride bike in the street, but my mother told me ().

单项选择题() many times, he still doesn't know how to use the computer.

A.He has been told
B.We have told him
C.Having been told
D.Having told him

单项选择题There are no lights on and no one answer the doorbell. They () be at home.

A.will not
B.should not
C.cannot
D.must not