1. The rule says that the last ______ the office should remember _____the windows.
A. to leave; to close B. leaving; to close
C. leaving; closing D. to leave; closing
2. Cycling is _____ to health and the environment.
A. benefitious B. benefiting C. benefited D. beneficial
3. Tom asked his mother to _______ the radio, for it wasn’t loud enough and he couldn’t hear anything.
A. turn down B. turn up C. turn on D. turn to
