resposta:

a) Henry is a clever boy and he CAN solve any problem very easily.

b) Isadora COULD phone you yesterday.

c) She COULD to difficult exercises when she was young.

d) I CAN write this report right now.

e) Alex COULD skate better when he was twelve.

f) Pedro CAN play chess quite well in a month.

g) You COULD rewrite your test two days ago.

h) He COULD use the computer as a child.

i) João is only three but he CAN count up to fifty.

j) She COULD swin very well last year.

Espero ter ajudado <3