1 . Find the incorrect part: Although both of them ,

• A. are
• B. trying to get
• C. the scholarship,she has the highest
• D. chance

Answer: Option C

Explanation:

2 . Find the incorrect part:

• A. The major
• B. source
• C. of air pollution vary from
• D. city to city on

Answer: Option B

Explanation:

3 . Find the incorrect part: Guests

• A. were not allowed staying
• B. the house at night because of
• C. the lack of
• D. sufficient_rooms

Answer: Option B

Explanation:

4 . Find the incorrect part: a progress

• A. for AIDS
• B. has been made
• C. toward finding
• D. a cure

Answer: Option B

Explanation: