Between the two parts of the concert is an interval, _____ the audience can buy ice-cream [ ]

There was a tree in front of the house, ___ owner was seen sitting under it, enjoying the shade.

I’m going to London and my sister is going _______.

Our school forbids ________, that is to say, we are not allowed ________ at school.[ ]

John arrived—Yes, already ________ he wait outside orjust come in