He offered to her a hand as the suitcase was too heavy for her to carry.
The person we referred to(提及)____ us a report tomorrow.
The research is so designed that once _____ nothing can be done to change it.
He wrote a lot of novels, none of _____ translated into a foreign language.
----- “Is there _____ here?” ------ “No, Bob and Tim have asked for leave.”
Good luck to you, and _____ all your wishes come true.