Alguien que me pueda ayudar con lo siguiente:
Exercises can, can't, could, couldn't can in the present could in the past

1. Ignacio ___ skate very well. He should practice a lot.
a) Can't
b) Could
c) Can
d) Couldn't

2. ___ he ride a bicycle at the age of 3? No, he ___. But he ___ ride a tricycle.
a) Can/can't/can
b) Could/can't/couldn't
c) Could/Couldn't/Could
d) Can't/can't/could

3. Martha ___ draw pictures when she was 5.
a) Could
b) Can
c) Couldn't
d) Can't

4. Jessica ___ wear that dress yesterday.
a) Can't
b) Can
c) Could
d) Couldn't

5. He was very sad because he ___ eat his ice cream.
a) Could
b) Can
c) Couldn't
d)

Can't 6. My dog is looking for its bone but it ___ find it.
a) Couldn't
b) Can
c) Could
d) Can't

7. He ___ comb his hair by himself. His mother combs it for him.
a) Could
b) Can
c) Couldn't
d) Can't

8. My little brother ___ walk when he was six months old.
a) Can
b) Can't
c) Could
d) Couldn't

9. Tom is really athletic. He ___ run very fast.
a) Could
b) Can
c) Can't
d) Couldn't

10. Could Jennifer eat her soup last night? No. She ___. It was too chili.

11. ___Adam ski? No, he ___.
a) Can/can
b) Could/could
c) Could/can't
d) Can/can't

12. David ___ sleep well last night because he was alone at home.
a) Can
b) Could
c) Can't
d) Couldn't​