No sooner ________ down on bed ________ the telephone rang.

My father has worked for 20 years in the field of medicine, so he has_______ a huge amount of experience.

I should convey my appreciation to my high school teachers, without ____ help I wouldn’t achieve such a big success

He ______ the advertisements in the newspaper and then goes directly to the store that is having a sale.

We used to see each other _____, but haven’t heard from him since last year.