They can us with the computers in march. a) support b) serve c) supply usually fairs and exhibitions with visitors. a)is crowded b) are crowded c) am crowded the catalogues were with our offer. a) enclosed b) closed c) close the price depends the quantity of the machines. a) of; b) at; c) on they usually give a discount to customers who are close touch with them . a) with; b) in; c) at i expect to be in the office earliest tomorrow. a) he; b) his; c) him i expect to come on friday. a) them b) their c) they i would like to study german. a) she; b) he; c) him a good rest in the open air has a good effect people. a) at; b) on; c) with the a 50 model is different the a 40 model. a) of; b) on; c) from time plays an important part in the daily life of business people. a) a; b) – ; c) the