1)give the singular of the following nouns: womin, teeth, feet, children, friends, lives, studies, driesses.

Woman tooth foot child friend live study dress

1. don't build, use

drinks, she's drinking

i'm redecorating 

how do you get, go, i'm going

do you always write

makes, do you think

2. has the post come? yes, it has

have you known? - i've known him

have you ever left. no, i haven't

why haven't you done, i haven't had

i have often seen her but i have never spoken to her

3. has been using 

he has been studying 

has mary been crying, she hasn't been crying, she has been peeling 

she has been speaking

mum has been shopping 

good morning!

- hello! are you looking for a book in particular?

- i’m looking for a specific book titled “animal psychology”. unfortunately i couldn’t find it anywhere in the psychology section.

- i see. have you already used the computer terminal on this floor?

- i have, in fact. the book is listed in this section but i didn’t find it on the shelves. there are dvds related to the subject, but i need the book.

- just a moment, please. let me well, yes. the book is in our database but somebody has checked it out recently.

- oh. don’t you have another copy of it?

- no. sorry. we have only one copy. and it should be available in 7 days.

- so, i can check again next tuesday, right?

- that’s right. but you can look for some other books today if you want. do you have a library card?

- no, i don’t. i want to sign up for it. what do i need for that?

- you have to submit a photo identification and proof of residence. when you find the book you’d like to check out, bring it to the front desk and i’ll explain you how to fill out the library card.

- ok. how long may i have the books checked out?

- you can have our books for 10 days.

- and how much is the fine after that?

- according to our rules, you’ll be charged 20 cents every day you don’t return it after 10 days.

- i see. thanks a lot. i’ll browse what is available.