27.If you ________ to something different, for example to a different system, task, or subject of conversation, you change to it from what you were doing or saying before.
In fact, radium not damaged their health, but also made the laboratory equipmentthey were wording radioactive.
parents will surelytheir children.
The food here is so bad that every other restaurant in the world must be ________ this one.
We demanded that we ________ of any change in the plan that they put forward.
Everybody was touched words after they heard her moving story.