Помогите пожалуйста past simple or present perfect

I . This is ... pencil. ... pencil is red.
I*. I huve ... ball. ... ball is big.
Д. My brother has ... dog. ... dog is old.
I Tlmy have ... flat. ... flat is new.
4 Нираноеская Т.В. Грамматика английского языка
5. Is this ... pen? — No, it isn’t a pen, it’s ... pencil.
(j. My sister has two... children. Her children are a t ... home.
7. Is your friend at ... home? — No, he is at ... work.
8. My son has no ... bicycle.
9. This is our ... room. ... room is large.
10. There are ... books. ... books are interesting.

1. Вставьте артикль, где необходимо.
I. Give me ... book, please.
Wc have ... son and ... daughter.
М. I have three ... sisters.
I. This is ... pen. It is his ... pen.
t>. Ill·HE has no ... pencil.
0 My brother’s ... watch is bad.
7. iSho wrote ... letter to her mother.
H. This is my ... sister. My ... sister is ten.
I». They bought ... car last week.
HI. This is ... book. ... book is new.

1. The word "science" means "knowledge" (what).
2. The scientist can order facts (what).
3. The scientists can unify facts (what).
4. The usually test the theory experimentally (what).
5. Technology influences different aspects of our life (what).

A) Past Simple B) Present Perfect

Past Indefinite or Present Perfect.
1) He (foget) his French since he (leave) Paris.
2) Years ago he (be) very poor, and (not know) how to live. He (become) very rich now.

(make) a loud noise.
41. People always (want) to be able to fly like birds in the sky.
42. I once (play) a guitar which (have) only five strings.
43. I never (teach) a class where the students are so lazy.
44. I (lose) a button. I don't suppose I'll ever find it.
45. The slower you eat the more you will think you (eat).
46. You (be) already late for classes twice this week, Nick.
47. What a surprise! You're the very person I (want) to see
so much.
48. They say the police already (catch) both of the thieves.
49. When we (be) kids, we (love) the beach very much, so we (use) to spend all our holidays at the sea.
50. You (make up) your minds yet? What you (decide) to do?
51. She (slip) her arm under his and (give) him a nudge.
52. Thanks a lot. It (be) a wonderful holiday. We (have) great fun.
53. Since when you (lose) sight of him?
54. Anyone (leave) a note for me?
55. The employment office (call) me twice since I (move) to
Los Angeles.
56. When we (live) in the north the water pipes (use) to freeze every winter and we (have) to call in a plumber.
57. People (use) to come at the weekends, but during the week I (be) alone in that huge house.
58. You (work) as a mechanic before? - Yes, I (use) to change flat tires.
59. We (see) him at the summer course in London.
60. All the shirts you (send) your father (fit) him perfectly so far.
61 Although I (study) French for years I have difficulties in speaking the language.
62. John whose grades are the highest in the school (receive) a scholarship.
63. Yesterday we (have) supper with the neighbours of ours.
64. Some years ago I (come) across this photo in an old magazine.
65. We (not/give) him a thing to eat since he (arrive).
66. Jerry (fail) his exams. He'll have to take them again.
67. It's ages since I last (see) a decent comedy film on television.
68. We understood that it (be) just a slip of the tongue.
69. The police (find) the bomb yet?
70. When I (go) to book a ticket to Athens, I (find) that the flight (be) full.
71. I'm not disappointed with today's result. After all we (win) ten matches already this season.
72. I never (do) anything like it before. We'll have to start from scratch.
73. My computer (break down) again. It's time for me to buy a new word processor.
74. I can't afford a holiday abroad until I (pay back) all my debts.
75. They always (bring) flowers when they came to visit me.
76. The butcher (cut) some steak, (wrap) it up and (hand) it to me.
77. Since the baby (be) born, they (have) a lot of sleepless nights.
78. I'm sorry for her. She (has) bad luck all her life.
79. Jack (climb) quite a number of mountains but he never (be) to Everest.
80. You (see) my gloves, by any chance?
81. He (give up) smoking yet? When he (do) it?
82. What's up? You (hurt) your ankle? How you (do) it?