Fill in: invade, rush, quarrel, smack, shake, staik, vanish, flee, dare in correct form.
1    if their team wins the football match, the fans will invade the pitch.
2    The ball smacked me on the leg and left a big bruise.
3    My sister and I have quarreled; that's why we are not speaking now!
4    The young girl vanished without a trace last Thursday morning.
5    Nobody dares to speak during the lesson.
6    Thousands were forced to flee from their homes after heavy rainfall led to flooding.
7    It is polite to shake hands when you first meet someone.
8    The woman rushed into the supermarket to get some milk.
9    The ghost is known to stalk the building at night.