_________ the flight to New York will bedelayed is _________ I’m especially worried about

Our math teacher ________ to our school at the age of 20 and she ________ in our school for more than 30 years.

__________ I was talking on the phone, my mother arrived at home.

The boy isn’t old enough ________ with thedifficult problem by himself.

I’ve been working all night and I’m _________.