What was happening to jews in germany around the time the frank family fled to the netherlands

They were being forced to go to the Nazi concentration camps. The Nazis would send a letter that would have the name of somebody who was being called. Margot Frank got the letter and that was when the Frank family knew they had to leave.

the present continuous is a verb tense which is mainly used to indicates that an action is in progress at the moment of speaking.  

it is formed using: person + verb to be (am/is/are) +verb + - ing form  

example: i am studying at this moment .

in addition, the present continuous is also used in order to express things that will or will not happen in the near future.

example: i am having dinner with some friends tonight.

the speaker sometimes   uses it   to express that an action is repeated and it causes irritation on the part of the speaker

example: my sister is constantly complaining about everything.