This nationwide smog should serve as a reminder to all, indicating a high time that we ______ on what we've done to the environment.
--- Don’t leave water while you brush your teeth, honey. --- Ok, Mum.
.--- Where did he leave his car key? --- It was in the lab he made the experiment.
--- Why don’t we take a little break? --- Didn’t we just have ?
the big snake, the little girl stood under the tree out of her life.
--- She looks very thrilled. She have passed the exam. --- I guess so. It is a very important exam after all.