Give the correct form of the verbs. 

1. David will leave for Rent tomorrow if the weather _____ (be) fine.

2. What will you do if you _____ (not / go) away for the weekend?

3. The game _____ (start) if you put a coin in the slot.

4. If you _____ (be) scared of spiders, don’t go into the garden.

5. We’ll have to go without John if he (not arrive) _____soon.

     1.            Chia động từ trong ngoặc

                      1.1.            David ………… (leave) for Rent tomorrow if the weather ………… (be) fine.

                      1.2.            What will you do if you………(not / go) away for the weekend ?

                      1.3.            The game ………(start) if you ………(put) a coin in the slot.

                      1.4.            He’ll be late for the train if he (not start) …………at once.

                      1.5.            We…………(have) to go without John if he (not arrive) …………soon.

                      1.6.            If he …………(eat) all that, he …………(ill).

                      1.7.            If she…………(accept) your card and roses, things………(be) very much hopeful.

                      1.8.            If a holiday…………(fall) on a weekend, we…………(go) to the beach.

                      1.9.            If she (come)…………late again, she…………(lose) her job.

                  1.10.            If he (wash)…………my car, I…………(give) him $20.

Exercise 3: Put the verbs in the brackets in the correct tense
1. David will leave for Rent tomorrow if the weather _____ (be) fine.
2. What will you do if you _____ (not / go) away for the weekend ?
3. The game _____ (start) if you put a coin in the slot.
4. If you _____ (be) scared of spiders, don’t go into the garden.
5. We’ll have to go without John if he ( not arrive) _____soon.
6. Please don’t disturb him if he_____ (be) busy.
7. If she _____ (accept) your card and roses, things will be very much hopeful.
8. If a holiday_____ (fall) on a weekend, go to the beach.
9. If she (come) _____ late again, she’ll lose her job.
10. If he (wash) _____my car, I’ll give him $20.
11. He’ll be late for the train if he (not start) _____ at once.
12. If I lend you $100, when you (repay) _____me?
13. Unless I have a quiet room I (not be able) _____to do any work.
14. If we leave the car here, it (not be) _____ in anybody’s way.

Put the verbs in brackets into the correct form of conditional sentence type 2 

1. If I(be) .........the qresident, I(pass) .........harder regulations for using fertilizers in agriculture 

2. If I(be) ..........you, I(not eat) ........that genetically modifed poetatoes 

3.If big corporations( care) .........more dbout the environment and less about their own pockets, the pollution from factories( not increase)..........so fast 

4. He( sort)......... his trash if(be)..........smart

5.If the seas( pollute).........,  maybe the population of whrow( recover)..........

6. If I(not throw)...........this can of coke into the bushes, I(not know)............that coke is poison for wild animals

7. If the factories( not dunp) ..........untreated waste into the ocean, fish( die)........massively

8. What( do) .........you if you( be).........Preident 

9. If the air(not be) ..........dirty, the breathig problems( reduce)...........

10.If I(own)........a lonely, island, I(build)......... a huge house by the beach 

EX 2. Put the verbs in brackets into the correct form of conditional sentence type 2.

 1.  If I (be)                  the president, I (pass)                          harder regulations for using fertilizers in agriculture.

2.   If I (be)                  you, I (not eat)                        that genetically modified potatoes.

3.   If big corporations (care)               more about the environment and less about their own pockets, the pollution from factories (not increase)                               so fast.

4.   He             (sort)                             his trash, if he (be)                  smart.

5.   If the seas (pollute)                       , maybe the population of whales (recover)                            .

6.   If I (not throw)                              this can of Coke into the bushes, I (not know)                                   that Coke is poison for wild animals.

7.   If the factories (not dump)                        untreated waste into the ocean, fish (die)                  massively.

8.   What (do)                           you if you (be)            President.

9.   If the air (not be)                            dirty, the breathing problems (reduce)                       .

10. If I (own)               a lonely island, I (build)                      a huge house by the beach.

Exercise 1. Put the verbs in brackets in the correct form of conditional sentence type 1.

1. If we _____________ (send) an invitation, our friends _____________ (come) to our party.

2. He _____________ (not/ understand) you if you _____________ (whisper).

3. They _____________ (not/ survive) in the desert if they _____________ (not/ take) extra water with them.

4. If you _____________ (press) CTRL + S, you _____________ (save) the file. 5. You _____________ (cross) the Channel if you _____________ (fly) from Paris to London.

6. Fred _____________ (answer) the phone if his wife _____________ (have) a bath.

7. If Claire _____________ (wear) this dress at the party, our guests _____________ (not/ stay) any longer.

8. If I _____________ (touch) this snake, my girlfriend _____________ (not/ scream).

9. She _____________ (forget) to pick you up if you _____________ (not/ phone) her.

10. I _____________ (remember) you if you _____________ (give) me a photo.

Exercise 2. Put the verbs in brackets in the correct form of conditional sentence type 1.

1. If I _____________ (study) hard, I _____________ (improve) my English.

2. Theresa _____________ (go) to Japan if she _____________ (get) a cheap flight.

3. If her boyfriend _____________ (not call) today, she _____________ (leave) him.

4. If the phone _____________ (ring), _____________ (you/answer) it? 5. What _____________ (you/do) if you _____________ (not find) your wallet?

6. He _____________ (find) a part time job if he _____________ (keep) looking.

7. If you _____________ (feel) unwell tomorrow, _____________ (take) a rest.

8. If they _____________ (not tell) us, we _____________ (keep) asking. 9. _____________ (you/let) me go if I _____________ (promise) to come back early?

10. He _____________ (eat) some popcorn if he _____________ (feel) hungry.

Exercise 3. Put the verbs in brackets in the correct form of conditional sentence type 1.

1. If I _____________ (study), I _____________ (pass) the exams.

2. If the Sun _____________ (shine), we _____________ (walk) to the town.

3. If he _____________ (have) a temperature, he _____________ (see) the doctor.

4. If my friends _____________ (come), I _____________ (be) very happy.

5. If she _____________ (earn) a lot of money, she _____________ (fly) to New York.

6. If we _____________ (travel) to London, we _____________ (visit) the museums.

7. If you _____________ (wear) sandals in the mountains, you _____________ (slip) on the rocks.

8. If Rita _____________ (forget) her homework, the teacher _____________ (give) her a low mark.

9. If they _____________ (go) to the disco, they _____________ (listen) to loud music.

10. If you _____________ (wait) a minute, I _____________ (ask) my parents.

Exercise 4. Identify the one underlined word or phrase that must be changed to make the sentence correct:

1. If (A) someone came (B) into the store, smile (C) and say, “May (D) I help you?”

2. If (A) you do not understand (B) what were written (C) in the book, you could ask (D) Mr. Pike.

3. If (A) there isn't (B) enough food (C), we couldn't continue (D) our journey.

4. If (A) anyone will phone (B), tell (C) them I'll be (D) back at 11:00.

5. I will come (A) to meet Mr. Pike and tell him about(B) your problems if (C) you didn't solve (D) them.

Exercise 5: Put the verbs in brackets: Conditional sentence type I or type II. (1)

·         If you come with me, I (do) ............................  the shopping with you.

·         Jimmy (help) ............................ his mother in the garden if she reads him a story this evening.

·         If it (ran) ............................, I will stay at home.

·         Our teacher will be happy if we (learn) ............................ the poem by heart.

·         If they had enough money, they (buy) ............................ a new car.

·         We (pass) ............................ the exam if we studied harder.

·         If Pat (repair) ............................ his bike, he could go on a bicycle tour with us.

·         She would get 100 pounds if she (sell) ............................ this old shelf.

·         If I were you, I (invite) ............................ Jack to the party.

·         If the weather (be) ............................ fine, the children can walk to school.

Exercise 6: Put the verbs in brackets: Conditional sentence type I or type II. (2)

      1.   If Tracy had a mobile phone, she (phone) ............................ all her friends.

      2.   I will be very angry with Nick if he (forget) ............................ my CD again.

      3.   If the boys win this match, their coach (invite) ............................ them to a barbecue.

      4.   If you (not/ read) ............................ these articles, you will not know the facts about Africa.

      5.   You (get) ............................ very wet if you walked in this rain.

      6.   The engine (not/ start) ............................ if Ben connected these two cables.

      7.   If he (have) ............................ time, he will buy her some sweets.

      8.   Maria would play in the school orchestra if she (practice) ............................ the trumpet more often.

      9.   We (not/ fetch) ............................ something to drink if Jim does not bring some sandwiches.

            10.       If he (carry) ............................ the rucksack, I would pull the suitcase