Over the next 20 to 50 years, it will become harder to tell the (581) _______ between the human and the machine.

The word “checked” in the second paragraph is closest in meaning to ______.

Simply asking questions like “What will my students need dozens of years from now?” or “How can I help give them those skills?” can change teachers' (605) ______, make them a leader, and bring about changes in the classroom, school and community.

What does the word “which” in the fourth paragraph refer to?

The final product of the process of drying liquids that uses the first method will be ______.

In the process of drying certain kinds of fruits, sulphur fumes help ______

The word “flop” in the passage is closest in meaning to

What does the writer suggest about reality talent show winners?

What is the main idea of the passage?

What is probably the writer’s attitude in the passage?

Which of the following is NOT mentioned in the passage?

This passage is mainly ______.

According to the passage, dried foods are most useful for ______.

The word "bounded" is closest in meaning to