Question 3: Supply the correct form or tense of the verb in brackets with the conditional sentence type II

1. If I _______ (know) his address, I could come to visit him.

2. The Earth wouldn’t be in danger if people _______ (not, act) carelessly.

3. Robert _______ (not, waste) so much water if he _______ (think) more about the planet.

4. If he _______ (speak) clearly, the teacher _______ (understand) him more.

5. He _______ (classify) the trash, if he _______ (think) for the dustmen.

6. If I _______ (be) the president, I _______ (not, allow) to use fertilizers in agriculture.

7. _______ (you, pick up) that bag of garbage if I told you to do it?

8. Sylvie _______ (pass) more laws to protect the environment if she _______ (be) a president.

9. If she _______ (eat) healthier food, she could lose weight.

10. I _______ (not, travel) abroad if I didn’t speak English

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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.

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

1.   If people (pollute)                         the environment, a lot of animals (die)                      .

2.   If water (consist)                            germs, people (get)                  ill.

3.   If the poles (melt)                                     , huge landmasses (be)                         under water.

4.   Many precious animals (disappear)                       , if people (cut down)                                      trees.

5.   If nuclear waste (throw)                            away, it (be)                            very dangerous.

6.   If the emission of CO₂ (continue)                          at high rate, the climate (destroy)                              .

7.   We (save)                            the trees If we (save)                         paper.

8.   If schools (teach)                           about environmental problems, All students (know)                          how to protect the environment.

9.   If more people (travel)                               by bike or bus, we (not have)                          traffic jam.

10.       If the government (fine)                      heavily to the factories, they (not dump)                                 

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.

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 

Complete the article below with the correct form of the verbs in brackets. Use the first conditional. In gaps 4 and 6, use a modal verb to make the prediction less certain.

Some animals, like lizards and worms, have an amazing ability to grow new body parts if they lose them. Salamanders can grow new legs and some worms can re-grow every part of their body, including their head! If scientists ¹___________ (can) discover how this happens, in theory it ²___________ (be) possible to re-grow human body parts too. Very few scientists are working on this problem now, but if governments ³___________ (start) to spend more money on research, then this dream ⁴___________ (become) a reality. Amazingly, some worms have no limit on lifespan, as they continually re-grow their bodies as they age. So if we ⁵___________ (learn) to repair human limbs and organs, it ⁶___________(be) possible to prevent us from dying. But that is a long way in the future.

Ex2: Complete the conditional sentences with the correct form or tense of the verbs in brackets. Add will, would, or modal verbs if necessary: 1. You might catch a cole if you (take) ____a shower late at night. 2. My sister ( not make) ____a cake if she doesn’t have enough ingredients. 3. What ( happen) ____if there was no electricity? 4. If she ( spoke) ____more clearly, I could understand her. 5. You ( take) ____a break from work if you feel stressed. 6. If Nancy ( not eat) ____so much junk food, she’d lose weight. 7. If it isn’t hot tomorrow, we ( not go) ____to the beach. 8. If I had wings, I ( be) ____able to fly like Perter Pan. 9. She won’t finish it on time if she ( not start) _____right now. 10. She ‘s going to take a vacation next week if she ( get) ____time off work. 11. She ( leave) ____early if she ‘s finished her work? 12. If I ( be) _____you, I wouldn’t make a decision now.