Question: 1. Fill in the blanks with ‘if’ or ‘unless’.
(a) I won’t be able to assist you ____ you give me all the details of the report. (b) I will take this job ________ the working hours suit me. (c) ______he advertises on TV, he will get a lot of publicity. (d) _____ it is very cold, we will not have any snow. (e) The thief threatened to kill us ____ we didn’t give him the money. (f) ____ you use high quality material, you cannot build a strong house.
{Please explain where to use "if" and whrere where to use "unless" in the following situations and why}