Since the new speed limits ______，the number of accidents in the area has fallen strikingly．
A． were introduced
B． introduced
C． have been introduced
D． have introduced
When Kerry and Sam met again two years later， each was pleased to see ____．
A． the other B． others
C． another D． other
Tony couldn’t remember ______he had turned off the computer before he left the office．
A． that B． where
C． when D． whether
All of us are pleased to see the problem ______ so quickly．
A． solve B． solving
C． to solve D． solved
She has been dreaming a future ____ she can spend more time growing flowers．
A． that B． when C． where D． which
If George had followed his father’s advice， he ________ a lawyer now．
A． is B． would be
C． has been D． would have been
