Blank-filling

____________ (advertise) are an important part of life.They use lots of ____________ (persuade) and _______ (excite) images to sell products or services. ________(general) speaking, there are two main types:______ (commerce) ads and PSAs.They do not always tell you the _______ (true). We should be ________(care).

Advertisements

persuasive

exciting

Generally

commercial

truth

careful

Question:How are these new words formed?