@izalex,
My version:
1.You
must not worry about me. Anyway you
have to walk miles to find a telephone that works
2. A large reception
was organized for the professor before he arrived
3. We
will go to the beach tomorrow unless it
rains
4.
What an amazing sight the Pyramids are!.
5. Sarah replied that she
did not like it at first, but she really
has enjoyed it then.
6. We hadnt booked
an accomodation before we went, and we had
an awful time finding
a room to stay
I am not sure about tenses, mybe someone can help.