Complete the 12 sentences below. Choose the best answer for each one.
1Ana knows how to swim, so she ............... swim.
Wrong!
Use "can" for an ability Ana has.
2Ben does not know how to ride a bike, so he ............... ride a bike.
Wrong!
Use "can't" for an ability Ben does not have.
3I know how to play the guitar, so I ............... play the guitar.
Wrong!
Use "can" for an ability the speaker has.
4My baby brother is too young to talk, so he ............... talk.
Wrong!
Use "can't" because the baby brother is too young to talk.
5Sara knows how to cook rice, so she ............... cook rice.
Wrong!
Use "can" for an ability Sara has.
6We do not know how to ski, so we ............... ski.
Wrong!
Use "can't" for an ability we do not have.
7The dog is able to catch a ball, so it ............... catch a ball.
Wrong!
Use "can" for an ability the dog has.
8The cat is not able to open the door, so it ............... open the door.
Wrong!
Use "can't" for an ability the cat does not have.
9You know how to use a computer, so you ............... use a computer.
Wrong!
Use "can" for an ability you have.
10They do not know how to read English, so they ............... read English.
Wrong!
Use "can't" for an ability they do not have.
11My sister is able to draw a horse, so she ............... draw a horse.
Wrong!
Use "can" for an ability my sister has.
12Jack is too short to reach the shelf, so he ............... reach the shelf.
Wrong!
Use "can't" because Jack is too short to reach the shelf.
Done.
Score: 0/12
Answers
- Ana knows how to swim, so she can swim.
- Ben does not know how to ride a bike, so he can’t ride a bike.
- I know how to play the guitar, so I can play the guitar.
- My baby brother is too young to talk, so he can’t talk.
- Sara knows how to cook rice, so she can cook rice.
- We do not know how to ski, so we can’t ski.
- The dog is able to catch a ball, so it can catch a ball.
- The cat is not able to open the door, so it can’t open the door.
- You know how to use a computer, so you can use a computer.
- They do not know how to read English, so they can’t read English.
- My sister is able to draw a horse, so she can draw a horse.
- Jack is too short to reach the shelf, so he can’t reach the shelf.

