What is the synonym from the words in parentheses?
01. He is used to writing (words which are no longer in use).
a. old words
b. ancient words
c. obsolete words
02. Half of his (merchandise) was stolen.
03. We have food that (is enough) for four days.
a. will give
b. will last
c. will perish
04. He cited the names of the (most important) industries in the city.
05. I don't know what to do to (convince) you that I am sincere.
06. You shouldn’t (waste) this opportunity.
b. hold back