She gave us a (demonstrate) of the machine to show us how it worked. 2、However, its (viable) and effectiveness still have to be established. 3、 I hope that what I say will (clarification) the situation. 4、The paint came off as the result of (expose)to the rain. 5、The building has all the modern (convenient). 6、 We booked into the Grosvenor Hotel on his (recommend). 7、The (lateral) agreement with the United States would give our forces access to nuclear ammunition. 8、Singapore and South Africa have (establish) diplomatic relations.