Start out right away, _____you’ll miss the first train

Fully ________ in preparing for the coming exam, she no longer has time to enjoy the various activities in her neighborhood.

Have you finished your homework—________Justhalf of it．How about you

When will they come back? 　　—–I _____ don’t know

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