5the production costs are … in our company. a) low b) plane c) poor d) cheap 6 an exporter must … the foreign market. a) study b) learn c) teach d) examine 7 each point of our contract must be discussed very … . a) carefully b) often c) good d) interesting 8 we were in canada … week and purchased some new equipment there. a) past b) fast c) cast d) last 9 arizona is one of the … states, it’s desert. a) dry b) drying c) driest d) drier