PRONOUNS

Helicopters are being used more in emergency situations because of its ability to reach out-of-the-way places.

• Correct

• Incorrect

The worker was fired by the chemical company because his refused to work with certain dangerous chemicals.

• Correct

• Incorrect

The mother took her son to the doctor’s office because he was feeling sick.

• Correct

• Incorrect

The administration will not install the new security system because they cost so much.

• Correct

• Incorrect

Some parents prefer to send their children to private schools because they believe the children will be better educated.

• Correct

• Incorrect

The air traffic controller was not blamed for the accident because he had strictly followed the correct procedures.

• Correct

• Incorrect

The new student has been assigned to work on the project with you and I.

• Correct

• Incorrect

Many kinds of aspirin are on the market, but theirs effectiveness seems to be equal.

• Correct

• Incorrect

You must bring a tent and a sleeping bag for your trip to the Sierras.

• Correct

• Incorrect

The weather in the mountains this weekend will be extremely cold, so please take yours heavy jackets.

• Correct

• Incorrect