Solutions for: App 343 / Must and Must not (2)

Practise using "must" and "must not" in sentences!
Use "must" when you want to say that you or someone else needs to do something (or you get in trouble). For example: I must do my homework.

Use "must not/mustn't" when you or someone else needs to avoid doing something or are/is not allowed to do it. For example: You must not be late for class OR You must not smoke.
We ______ be late at the bus stop or we will miss the bus.

Solution:
must not
I ______ tell you what happened at the weekend, it was so great!

Solution:
must
We ______ bring our rulers to every Maths class.

Solution:
must
I ______ come home after dinner time, otherwise my parents worry.

Solution:
mustn't
Me and my sister ______ turn on the music too loud or the neighbours will complain.

Solution:
must not
We ______ be on time for our gymnastics class.

Solution:
must
I ______ do my household chores every day.

Solution:
must
Kelly ______ play football in her room, it is too dangerous.

Solution:
must not
I ______ put too much sugar in my tea, Mum says.

Solution:
mustn't
The door ______ always be locked at night.

Solution:
must
We ______ forget to phone when we going to be late.

Solution:
mustn't
I ______ cook my own dinner on Mondays because my parents work late.

Solution:
must
We ______ run in the hallways.

Solution:
mustn't
I ______ annoy my brother when he is practising the piano.

Solution:
must not