am sorry ______ the traffic is so heavy. —–Does that _______ why you are so late ?

The traditional approach ________ with complex problem is to break them down into smaller, more easily managed problems.[ ]

The woman burst into tears ________she was announced the winner.

He had to take the medicine three times a day, so as to be _____ the pain in the leg.

Many of them turned a deaf ear to his advice, ________ they knew it to be valuable