4.  Negative ability on a specific occasion

3.  Negative general ability

2. Positive ability on a specific occasion

1. Positive general ability

12.  We ______________________________ hear Joe enter the house because he made a loud noise.

11.  I ________________________________understand anything that he was saying.

10.  However, she  ____________________________ see the escaping gas.

9.  She ______________________ smell gas coming from the stove, so she turned off the burner.

8.  The rescuers _______________________contact the trapped miners soon after the mine collapsed yesterday.

5.  Unfortunately, I ______________________________ find my keys last night when I got home last night.

4.  However, at age fifteen, I  ____________________________ drive a car.

3.  When I was fifteen, I ________________________ ride a motorbike.

2.  And when she was ten, she ___________________________ speak another two languages.

1.  At the age of eight, she_______________________ speak three languages.

9.____ Were you able to finish your homework yesterday?

8.____ The students were able to pass the Final Exam last fall.

7.____ I used to be able to sing.

6.____ Randy was not able to drive until age eighteen.

5.____ David was able to lift heavy boxes before his injury.

4.____ Sherry was able to run faster than her brother when they were young.

3.____ We were able to get an excellent price on flights for our trip.

2.____ Unfortunately, I wasn’t able to make a dentist appointment for this week.

1.____ I was able to ride a bike when I was ten years old.