The proposal that the head of the team made at the meeting sounds _____________ (reason). 2. It is reported that an international conference ______________ (hold) in London next Friday. 3. It is said that advertising is the _______________ (expensive) of all the promotional activities undertaken by businesses. 4. Generally speaking, once you ___________ (make) the payment, the goods should be delivered within a week. 5. The company suffered greatly during the economic crisis, with considerable loss of its __________________ (invest).