In order to finish the task______， she works day and night and doesn’t measure the cost to her health.[ ]

It has been announced that candidates ______ remain in their seats until all the papers have been collected.

Mary can speak Chinese fluently, _____ impressed me most.

The girl has a great interest in sport and ____badminton classes twice a week over the last three years.

Where have you been?— I got caught in traffic; otherwise________sooner.[ ]