On

Question 1

Be on fire

Answer 1

1/ Sth is burning
Ex: the building is on fire
2/ playing/working extremely well
Ex: You are on fire today!

Question 2

Be on hold

Answer 2

1/ If you are on hold when using the phone, you’re waiting to speak to someone
Put someone on hold: He’s on the phone at the moment, can I put you on hold
2/ If an activity is on hold, it has been intentionally delay
Be put on hold: the movie has been put on hold until the Korea political situation improves
Put sth on hold: I was so excited about doing the course, I put everything else on hold

Question 3

On the go

Answer 3

1/ Busy and active
Like most working mothers, she is always on the go
I have been on the go all day, and I’m really tired
Did you know that she’s got a new book on the go
2/ while travelling or not at home
With mobile banking, you can manage your money on the go

Question 4

On the rise

Answer 4

Increasing
Police say that youth crime is on the rise again