Choose the correct meaning for the idiom. 

Tip of the iceberg

I overslept and ______________ couldn't join them

There are _____________ students in the class.

She asked him to stay, ______ he had to go to work

__________ I forget later, here are the keys to the garage

Choose the correct meaning for the idiom. 

Go the extra mile

There are two students ________ the class.

My pencil is __________ the books and the notebooks.

The students are very hungry but there isn't _______ for everyone.

It was freezing cold, ______ I wore a thick coat.