It is comforting to see that ________， we are doing our part for the environment.

Neighbors said they heard the man tell thewoman that she couldn’t leave______ she gave back the money borrowed from him

Guo Yue did quite ______atthe World Table Tennis Championship (锦标赛), but Zhang Yining did even ______.

Excuse me, can I smoke here? –No, ______.

he realized the police had spotted him, the man ____ the exit as quickly as possible.