Read the sentences and write I.C if the underlined clause is an independent clause or D.C if it is a dependent clause.

Example:

You must be careful when you cross the street.  D.C

1. I'll wait for you here until you get back. _I.C__

2. Make sure you lock the door when you go out. _D.C__

3. You must get a permit before you build a campfire at a national park. __I.C_

4. Dont use too much water while you are having a shower. _D.C__

5. As soon as my friends come, we will pick up rubbish on the beach. _I.C__

1, If you don't study hard, you will fail the exam

=> If you study hard, you won't fail the exam

2, If you don't work hard, you will fail the examination

=> If you work hard, you won't fail the examination

3, If you don't water flowers, they will die

=> If you water flowers, they won't die

4, If we don't keep the environment clean, we won't have an ideal place to live 

=> If we keep the environment clean, we will have an ideal place to live

5, If you get up early, you won't be late for school

=> If you don't get up early, you will be late for school

1. Study hard or you will fail the exam.

→ If you don't study hard, you will fail the exam.

→ If you study hard, you won't fail the exam.

2. Work hard or you won’t pass your examination.

→ If you don't work hard, you won't pass your examination.

→ If you work hard, you will pass your examination.

3. Water flowers or they will die.

→ If you don't water flowers, they will die

→ If you water flowers, they won't die.

4. Keep the environment clean or we won’t have an ideal place to live.

→ If we don't keep the environment clean, we won't have an ideal place to live

→ If we keep the environment clean, we will have an ideal place to live.

5. Get up early or you’ll be late for school.

→ If you don't get up early, you will be late for school.

→ If you get up early, you won't be late for school.

* Nhìn chung thì đây là những câu điều kiện loại 1 cơ bản. Mình cho khẳng định và phủ định làm thành 2 dạng câu.

* Cấu trúc:

- Câu điều kiện loại 1: If + Present simple, S + will/can + V (bare)

- Câu điều kiện loại 2: If + Past simple, S + would/could + V (bare)

- Câu điều kiện loại 3: If + Past perfect, S + would have + VPII

We would have been so tired if we hadn't stayed up late last night.

FACT IN THE PAST -> IF CLAUSE (TYPE 3)

4. We stayed up late last night and we were so tired.

-> We ................wouldn't have been so tired if we hadn't stayed up late last night..............(if)

3 we had had a map, we wouldn't have got lost.

4 we hadn't stayed up late last night, we wouldn't have been so tired.

5 he had been able to answer  the questions, he wouldn't have failed the exam.

-Câu điều kiện loại 3 diễn tả điều không thể xảy ra ở quá khứ: If + S  + V(quá khứ hoàn thành), S + would/could + have + PII+......

do 

is 

will buy 

will go 

hurry/ will catch

is

will be

rises

will finish

rains

will give

10. do

11. is

12. will buy

13. will go

14.hurry/will catch

15. is

16, will be

17. rises

18. will finish

19. rains

20. will give

10. do

11. is

12. will buy

13. will go

14.hurry/will catch

15. is

16, are 

17. rises

18. will finish

19. rains

20. will give

6  I hadn't been very busy, I would have phoned you.

7 I had had an umbrella, I wouldn't  have got wet in the rain.

8 Peter hadn't been very nervous, he wouldn't have failed the driving  test.

9 I had had some money on me, I would have taken a taxi.

10 she had had a visa, she could have come to that country.

wish clause

The weather isn'n better today

-> If only the weather were better today.

Bài 1: Use the words in brackets to write sentences. Write conditional sentences Type 1 (with the If clause, and the main clause)

0. If the soil (be) pollution, plants (die) fast.

=> is ; will die

1. If you (become) a teacher, you (have to work) hard all the time.

=>become; will have to work

2. If Nam (do) a lot of exercise, he (stay) fit and healthy.

=>does;will stay

3. If people (read) newspaper everyday, they (know) what's happening in the world.

=>read;will know

4.If the Earth (become) hotter, plants and animals (not live) longer.

=>becomes;won't live

5. If I (go)to Ha Long this summer, I (take) a lot of beautiful photos there.

=>go;will take

Bài 1: Use the words in brackets to write sentences. Write conditional sentences Type 1 (with the If clause, and the main clause)

0. If the soil (be)is pollution, plants (die)will fast.

1. If you (become) become a teacher, you (have to work) will have to work hard all the time.

2. If Nam (do) does a lot of exercise, he (stay) will stay fit and healthy.

3. If people (read) read newspaper everyday, they (know)will know what's happening in the world.

4.If the Earth (become) becomes hotter, plants and animals (not live) won't live longer.

5. If I (go)go to Ha Long this summer, I (takewill take a lot of beautiful photos there.

Bài 1: Use the words in brackets to write sentences. Write conditional sentences Type 1 (with the If clause, and the main clause)

0. If the soil (be) is pollution, plants will die (die) fast.

1. If you become (become) a teacher, you will have to work (have to work) hard all the time.

2. If Nam (do) does a lot of exercise, he (stay) will stay fit and healthy.

3. If people read (read) newspaper everyday, they (know) will know what's happening in the world.

4.If the Earth (become) become hotter, plants and animals (not live) won't live longer.

5. If I (go) go to Ha Long this summer, I (take) will take a lot of beautiful photos there.

Complete the Conditional Sentences (Type II) by putting the verbs into the correct form. Use 
conditional I with would in the main clause.
1.  If he (start) ___started_______  at once, he (arrive)___would arrive_______ there by midday. 
2.  Tom (be)______would be ____  sick if he (eat) ______ate____ all those chocolates. 
3.  If I (lose)____lost______  my glasses, I (not be)____wouldn't be______ able to read. 
4.  You (become)___would become_______  ill if you (forget)______forgot____ your jacket.
5.  If the weather (get)___got_______  colder, I (buy)_____would buy_____ a new coat. 
6.  If we (have)_____had_____ a yacht, we (sail)___would sail_______the seven seas. 
7.  If he (have)____had______more time, he (learn)____would learn______karate.
8.  If they (tell)____told______their father, he (be)_____would be_____very angry.
9.  She (spend)___would spend_______a year in the USA if it (be)____were______easier to get a green card.
10.  If I (live)____lived______on a lonely island, I (run)______would run____around naked all day.
11. We (help)____would help______ you if we (know)__knew________ how.
12.  My brother (buy)___would buy_______a sports car if he (have)___had_______the money.
13.  If I (feel)_____felt_____better, I (go) ___would go_______to the cinema with you.
14. If you (go)____went______by bike more often, you (be / not)___wouldn't be_______so flabby.
15. She not / talk)____wouldn't talk______to you if she (be)___were_______mad at you.
16.  If I (be) ______were___(be) younger, he (travel)______would travel____ more.
18.  If we (not/ be)___weren't_______ friends, I (be) _____would be____angry with you.
19.  If I (have) ____had______enough money, I (buy)_____would buy_____a big house.
20.  If she (not/ be) ___weren't_______always so late, she (be) _____would be_____promoted.
21.  If we (win) ____won______the lottery, we _____would travel______ (travel) the world.
22.  If you (have)___had_______ a better job, we (be)____would be______ able to buy a new car
23.  If I (speak)___spoke_______ perfect English, I  (have) ___would have_______a good job.
24.  If we (live)__lived________ in Mexico, I (speak) _____would speak_____Spanish.
25.  If she (pass)____passed______ the exam, she ____would be_____ (be) able to enter university.
26.  She (be)____would be______ happier if she (have)_____had_____ more friends.
27.  We (buy)____would buy______ a house if we (decide)_____decided_____ to stay here.
28.  They (have)_____would have_____ more money if they ___didn't buy_______ (not / buy) so many clothes
29.  We (come)____would come______ to dinner if we ___had_______ (have) time.
30.  She (call)___would call_______ him if she (know)_____knew_____ his number. 
31.  They (go)___would go_______ to Spain on holiday if they (like)______liked____ hot weather.
32.  She (pass) ___would pass_______the exam if she ___studied_______ (study) more.
33.  I (marry)___would marry_______ someone famous if I (be)____were______ a movie star.
34.  We never (be)____would never be______ late again if we (buy)____bought______ a new car.
35.  You (lose)_____would lose_____ weight if you (eat)___ate_______ less.