Give the correct word formation

1. We like their .....unfriendliness...... (friendly)

2. The ....friendliness..... between Vietnam and China is good (friend)

3. They seem to be .....unfriendly..... . We dislike them (friend)

4. There will be a ......meeting.... in this street (meet)

5. We saw .....beautiful..... girls there (beauty)

6. Can you give me some .....information..... the next flights to Florida ? (inform)

$=4x^4+21x^2{y}^2+y^4-25x^2{y}^2$

$\left(2x^2+y^2\right)-{\left(5xy\right)}^2$

$\left(2x^2+y^2-5xy\right)\left(2x^2+y^2+5xy\right)$

1. They(just decide)...........have just decided..........that they (undertake)..........would undertake..........the job.
2. We (go)...........went...........to the theatre last night.
3. He ussally(write)..............writes...........in green ink.
4. She(play).........was playing ........the piano when our guets (arrive)..........arrived..........last night.
5. We (do).......are doing.......an English exercise at the moment.
6. She (just come).........has just come........in and (see).........will se.......you in 5 minutes.
7. I (come).............will come..............as soon as my work is finished. (You/be)..........Will you be............ready?
8. Where(you go)..........did you go.........for your holiday last years?
9.I (not leave).........haven't left..........Paris since we (go)........went.........to Dieppe three years go.
10. My mother (come) _____is coming_____ to stay with us next weekend.
11 We (meet) _____met_____ only yesterday and (already decide) _____have already decided_____ to get married.
12 I (never see) _____have never seen_____ snow.
13. Violets (bloom) _____bloom_____ in spring.
14. We (not live) _____haven't lived______ in England for the last two months.
15. I (lose) ____have lost____ my keys; I cannot remember where I last (see) ___saw___ them.
16. He (not arrive)...........hadn't arrived......... when I (Write).........wrote..........my last letter to you
17 Whenever you (go) _____go____ to town nowadays, you (spend) ____spend_____ a lot of money.
18. I(never forget)...........will never forget..........what you (just tell)...........has just told.........me.
20./ When I last (stay) ______stayed_____ in Cairo, I (ride) _____rode_____ to the Pyramids on a camel that my friend (borrow) ______had borrowed______ the day before.
21./ I (finish) ______will finish_____ the book before my next birthday.
23/ He (walk) _____was walking_____ very quickly when I (meet) _____met_____ him yesterday.
24/ We (meet) _____will meet____ you tomorrow after you (finish) _____have finished_____ your work.

Put the verbs in brackets in the past simple or the past perfect tense​

1/ They (go) ___WENT_______ home after they (finish) __HAD FINISHED________ their work.

2/ He (do) ______HAD DONE___ nothing before he (see) ___SAW________ me.

3/ He (thank) THANKED me for what I (do) _HAD DONE_________ for him.

4/ I (be) WAS sorry that I (hurt) ___HAD HURT_______ him.

5/ After they (go) ____HAD GONE______ , I (sit) ______SAT____ down and (rest) ___RESTED______.

6/ When I (arrive) ARRIVED, the dinner (already, begin) _______HAD ALREADY BEGUN_______.

7/ My friend (not see) __HASN'T SEEN____ me for many years when I (meet) _MET____ last week.