Read the paragraph. Do you realize that your lead pencil is not lead at all? if it were. It would cost more. Today, pencils are made of graphite, which is cheaper,
darker, and harder than lead. Pencils used to cost about a nickel. Now, each one costs closer to 20 cents. But it is still a bargain, for one pencil can
draw a line 39 miles long. Not many ballpoint pens that cost two dollars and more would last that long!
What is the main idea of this paragraph?
01. Pencils are a bargain for the money.
02. Pencils are no longer made of lead.
O 3. Graphite pencils make darker lines.
O 4. Pencils cost about 20 cents each today.

Ineed . read the passage, and choose the two (2) inferences that are most firmly based on the given information. although lie detector tests are based on a sound principle, they are not alwaysaccurate. the test is based on the fact that people become emotionally “stirred up”when they lie. the lie detector can sense physical changes that accompany suchemotional responses. but an innocent person may react emotionally to a keyquestion.thus, he or she appears to be lying when actually telling the truth. and criminals who lie often may feel no guilt about anything. they can therefore tell huge lies without showing the slightest emotional ripple on the lie detector. without an emotional response, there are no physical responses to detect. 1. criminals never feel any guilt about their crimes. 2. lie detector tests are not foolproof. 3. anyone can easily fool the lie-detector machine. 4. an emotional response by an innocent person