31. —You should make it a rule to do more exercise in your spare time. — I think your suggestion really deserves__________.
It is often said that _______famers lead _______very hard but simple life.
_______, when I went to town to see my sick teacher, he said to me, “I’ll come back to school again _______.”
Sweet memories ______ as I looked at the pictures _____were taken at the beach last summer.
Dr Yuan makes______ possible______ one-third more of the crop in the same fields.
The fruit ________ fresh in his fruit stand sells well.