1 - Change the sentences with Can or Could to the negative and interrogative form:
a) David can climb that wall easily.
Neg.: David can’t (cannot) climb that wall easily.
Int.: Can David climb that wall easily?
b) Students can learn Japanese at that school.
Neg.: __________________________________________________________________
Int.: ___________________________________________________________________
c) He can write with both hands.
Neg.: __________________________________________________________________
Int.: ___________________________________________________________________
d) You can drive his car.
Neg.: __________________________________________________________________
Int.: ___________________________________________________________________
e) They could leave the classroom earlier.
Neg.: __________________________________________________________________
Int.: ___________________________________________________________________
f) I could run 10 miles when I was young.
Neg.: __________________________________________________________________
Int.: ___________________________________________________________________
g) Her daughter could read at the age of five.
Neg.: __________________________________________________________________
Int.: ___________________________________________________________________
h) My uncle could repair your iPad.
Neg.: __________________________________________________________________
Int.: ___________________________________________________________________
2 - Use can or could:
a) Liam is too fast. We can’t reach him.
b) Lisa is very stubborn. Nobody ____________________ change her mind.
c) The questions were easy. Everybody ____________________ solve them easily.
d) Tim is very shy. He ____________________ make friends easily.
e) The book was confusing and boring. I ____________________ finish it.
f) Ella is very rich. She ____________________ travel anywhere she wants.