Exercise: modal auxiliary, can 2.

Exercise on how to use can in simple negative sentences.

Complete the sentences in the negative form. Use the full form cannot or the contracted form can't.

Example 1:
He can play squash but he...

cannot play tennis.

Example 2:
Dave can speak Chinese but he...

can't speak Japanese.

1) She can play the guitar but she...

the flute.

2) John can have lunch with Mary at two but he...

dinner with Sarah this evening.

3) The secretaries can take a break now but they...

a break this afternoon.

4) I can speak Japanese but I...

German.

5) The boss can give a presentation this morning but he...

a presentation tomorrow.

6) The students are doing the easy exercise because they...

the difficult one.

7) Mary and John are going shopping this morning because they...

in the afternoon.

8) Mary always switches on the computer because Dave...

the computer himself.

9) Mary is helping the old man to get off the bus because he...

the bus by himself.

10) John and his colleagues are leaving early today because they...

early tomorrow.

*Incorrect answers are shown in red. You have TWO chances to find the correct answers.