1. fall in
I'm afraid the roof will fall in an earthquake hits the area
The Boy Scouts were told to fall in behind the leader.
The teacher asked the kids to fall in.
The stunning fall in oil prices has been one of the most important global macroeconomic developments of the past 2 years
Anglais mot "zapadać się"(fall in) se produit dans des ensembles:
Moja pierwsza lekcjaPHRASAL VERBS SZTBack to Schoolphrasal verbsvocabluary unit 10