Explicação:

a) Mary called me to say it.

b) The party had been postponed.

c) Will you help me look for my pen?

d) They will escape if you forget to close the gate.

e) She has had many problems to raise the children by herself.

f) It's really difficult, but I'm not going to give up.

g) I'm studying hard to improve my English.

Resposta:

a) Mary called me to say it. (telefonou)

b) The party had been postponed. (adiada)

c) Will you help me look for my pen? (procurar)

d) They will escape if you forget to close the gate. (escapar)

e) She has had many problems to educate the children by herself. (educar)

f) It's really difficult, but I'm not going to give up. (desistir)

g) I'm studying hard to improve my English. (melhorar)

Explicação: