Answer:
a). He sat in front of the fire because he liked its warmth.
b). His stamp albums were full. Therefore, he needed a new one.
c). He collected space travel stamps because of his grandson's interest.
d). He still preferred to collect British stamps although they were not as colorful as Nepalese stamps.
e). In spite of having collected stamps for so many years, he still enjoyed the hobby.
f). However, It was getting more expensive to buy stamps now he decided to continue collecting them.
Step-by-step explanation:
The conjunctions are defined as the words that are used to join two or more words or phrases in order to combine them and accomplish their meaning together. For example, although, because, etc. Sometimes the adverbs like therefore, however, in spite of, etc. are also employed in the conjunctive form to link two independent clauses and justify its meaning.