1)We must hurry, we have time. a little/little/much
2)Her ideas are very difficult, and ... people understand her.
little/few/many
3)I know wery ... about this writer. It is the first book i am reading.
a little/little/few
4)There are ... shops near my house.
much/some/any
5)I need to buy ... groceries.
some/no/any
6)I am sad. I have got ... messages.
no/some/any
7)There are not ... bananas left.
any/some/no
8)Say ... words in French, please.
a few/many/a little
9)Bill says he has too ... money to go to dances.
a little/much/little
10)There is ... reason to cry.
no/some/any

a I would t to reserve some rooms at your hotel.

b we are arriving in A.on 28 July.

c we hope to stay for ten nights leaving on 7 August.

d.My husband and I would like a double room preferably with a balcony.

e. our two teenage daughters require a twin-room

f. we understand that all your bedrooms are en-suite.

g. could you confirm this?

h. is it possible to have a room with seaview?

i. Please,let me know if you have available rooms for these days?

j. I would be grateful if you also could tell me the price of each room.

k. I look forward to hearing from you.

The употребляется когда говорится о конкретном предмете (the chair - речь о каком-то конкретном стуле)
Предлог a употребляется когда говорят о предмете в целом (a chair - просто какой-нибудь стул)
They переводится как они, думаю с употреблением понятно
It употребляется когда предмет среднего рода или мы не знаем пол животного, например - l have a cat? - What is it's name? ( говорит человек, который не знает пол животного)
Is употребляется когда предмет один (she is)
Тhey когда предметов много (they are)