While typing, Helen has a habit of stopping _____ to give her long and flowing hair a smooth.
The students all wear the same uniform,so it’s hard for me to ________my son among them.
Not recognizing me at first, __________.
She was always _____ , even when things were at their worst.
This also keeps the air,soil,water crops________ chemicals.
____polite to others and you can get friendship in turn.