Здесь единственное число (первые два предложения) и два предложения последних множественной число. Можно спросить есть ли стулья. Стулья - chairs. Или столы - tables. А первые предложения про кровать - bed, и кресло - armchair. и не забывать артикль. Это артикль a. Только на слово кресло an. Потому что оно начинается с гласной.
1.What are you doing how? - l'm waiting for a bus. How long have you been waiting for it? - l've been waiting for it for two minutes.
2. l had been sleeping for an hour when he came.
3. It has been raining since the morning.
4. He said that he had been staying there all day.
5. I've been packing my things for an hour and half.
6. The pupils have been discussing the novel which they will read next month for half an hour.
7. The teacher said that she had been correcting our dictations for 2 hours.
8. Since when have they been building this house?
9. I had been looking for my copybook for half an hour, before I found it under the newspaper.
10. The children have been skating for an hour.
1) They expect the vessel to leave today.
2) l saw your trawler to be entering the port.
Did your team win match? When did you go running? Who was win gold medal? Did you watch the final on TV? Where did they play? When was the World Cup? a-6,b-5,c-2,d-3,e-1,f-4
2) in the swimming pool.
3) in the zoo.
4) at the railway station.