a. Mona said to her friends, "Let us have a Picnic on Friday."

Ans: Mona proposed to her friends that they should have a Picnic on Friday.

b. The boy goes on saying, "I am busy."

Ans: The boy goes on saying that he is busy.

c. The old woman said to him, "God bless you."

Ans: The old woman prayed that God might bless him.

d. "Don't swim out too far, boys", I said.

Ans: I advised the boys not to swim too far

e. The school children said, "Long live our President."

Ans: The school children wished that their President might live long.

f. "I'll do it tomorrow", he promised.

Ans: He promised that he would do it the next day.

g. "I don't know the way. Do you?" Mother said.

Ans: Mother said that she did not know the way and asked me if I knew.