must be/can’t be
* When we think something is certainly true we use must be and when we think something is impossible we use can’t be
I am sure it isn’t easy=It can’t be easy
It is certain she is rich=She must be rich
Example : He has been living a mansion. (poor)
He can’t be poor.
1 Alice is wearing a wedding ring. (married)
3 Masha can almost touch the ceiling(short)
5 She eats like birds. (slim)
7 Frank has been working all day and all night. (tired)
9 I can hear some people talk.(out)
12)I clearly remember the day he was born.(old)
Henry