In Rooftops City (part 1)

Vocabulary: a bank, a hospital, a hotel,
a museum, a petrol station, a theatre, a town hall, a train station, a dictionary, a ladder, a parcel, a pot, a torch, a watch, coins, bucket, helmet, marbles, address, letter, scales, stamp, having a drink, listening to music, talking to friends, wearing a cap, fifteen, twenty, twenty-five, thirty,
forty-five, sixty, sixty-five, seventy, seventy- five, ninety-five

Grammar: Is he (going to the hospital)? Yes, he is. / No, he isn’t.
This is (her) torch.
Is this (their) ladder?
Yes, it is. / No, it isn’t.

+ How much is it?