назовите по систематической номенклатуре следующие вещества - №25464277

назовите по систематической номенклатуре следующие вещества
- Предмет:
  Химия
- Автор:
  omarsimpson
- 5 лет назад

Ответы 1

A) 2,3-диметилбутан Б)1-метил,2-этилбутан
- Автор:
  calderon
- 5 лет назад
- 0
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Past Simple Tense Exercises
1) Complete the sentences with the SIMPLE PAST of the verbs in parentheses:
a) They ____________________ (watch) TV last night.
b) Priscila ____________________ (talk) to her friends all day.
c) I ___________________ (have) a terrible headache yesterday.
d) Bob _____________________ (come) home from school late.
e) They ____________________ (arrive) late and ___________________ (miss) the bus.
f) She ____________________ (study) hard and ___________________(pass) the exam.
g) He ____________________ (call) the office to tell them he was sick.
h) I ___________________ (speak) to the director as he was leaving the room.
i) Dr. Johnson ______________________ (get up) early this morning.
j) Mary _____________________ (do) her homework and ________________ (go) to
school.
k) Chris ____________________ (find) a ten-dollar bill.
l) The dog ______________________ (follow) us down the road.
m) Those students _____________________ (work) hard last semester.
n) Lúcio ___________________ (stop) at the corner and __________________ (call) us.
o) I ___________________ (try) to talk to Helen last night.
p) I ___________________ (pay) the phone bill yesterday.
q) My dad ____________________ (catch) a cold when he ________________ (be) in
Canada.
r) She _____________________ (leave) home early yesterday.
s) They ____________________ (know) each other very well when they
________________ (be) kids.
t) The teacher _____________________ (bring) the exams corrected.
u) She was cleaning the vase when she ____________________ (drop) it.
v) We ___________________ (jog) in the park yesterday.
w) The fire ____________________ (occur) while we ___________________ (be) out.
x) I __________________ (meet) some nice people at the party last weekend.
y) Carol _____________________ (sleep) until late on the weekend. Then, she
_______________ (go) out to lunch.
z) We ______________________ (fly) to the USA on a great airplane.
2) Write questions or negatives sentences:
a) She visited her parents last weekend.

Question: __________________________________________________________?
b) He cleaned his room before school.
Question: ___________________________________________________________?
c) The teacher found the missing exams.
Negative: ____________________________________________________________?
d) Tom wanted to go to the movies alone.
Question: ___________________________________________________________?
e) Helena offered Henrique a piece of cake.
Negative: ___________________________________________________________?
f) I knew what to do.
Negative: ____________________________________________________________?
g) Alexandre helped Anita with her homework.
Question: ___________________________________________________________?
h) You ate cookies after dinner.
Negative: ____________________________________________________________?
i) You talked to her earlier.
Question: ___________________________________________________________?
j) We turned off the TV after the news.
Negative: ____________________________________________________________?

k) He drank only a coke at the party.
Question: ___________________________________________________________?
l) Mom made breakfast early.
Negative: __________________________________________________________?
- Предмет:
  Английский язык
- Автор:
  erik606
- 5 лет назад
- Ответов:
  
  1
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решите пожалуйста тест по истории!!!очень срочно!!!!!даю 50 БАЛЛОВ!!!!
- Предмет:
  История
- Автор:
  canorc1a
- 5 лет назад
- Ответов:
  
  1
- Смотреть
Объясните, пожалуйста такие уравнения, как:
56x-44+66+75x=500
Пожалуйста, решите это уравнение и расскажите как его решать, объясните, пожалуйста.
- Предмет:
  Математика
- Автор:
  jeanbeltran
- 5 лет назад
- Ответов:
  
  3
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Помогите ,синтаксический разбор)У заснеженной реки..и т.д
- Предмет:
  Русский язык
- Автор:
  rosieaaxs
- 5 лет назад
- Ответов:
  
  2
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