Use "there is / there are" construction in the necessary tense form:
1) look! a photograph of george in the newspaper.
2) twenty years ago many tourists here. 3) i am sorry. i am late. a lot of traffic.
4). hours in a day.
5) we are staying at a very big 250 rooms.
6) i don't think any problem
a nice girl in our class.
cakes left on the table.
big car in front of our garden.
a lot of noisy children in the classroom yesterday.
11) no books on your desk.
12) a black pencil on the floor .
13) a knife in the kitchen.
14) i was hungry but anything to eat.
15) no eggs left.
16) the shopping centre is huge. a lot of shops.
a new computer in peter's room.
18) we missed the train. a lot of traffic jams.
a pump on my bike.
no blue crayons in the cupboard