1. Identify the one that has a mistake by circling the corresponding letter a, b, c, d.

71. If we will reduce the speed of population growth, there will be less pressure on the earth.

A b c d

72. Unless we leave a bowl of water under the sun, it will evaporate.

A b c d

73. If we continue to use fuels at the current rate, we would soon have to face a fuel crisis.

A b c d

89. If tomorrow the weather will be bad, the match will be postponed.

a. b. c. d.

90. If you will see Mike today, please ask him to phone me.

a. b. c. d.

71. If we will reduce the speed of population growth, there will be less pressure on the earth.

                       A                                         b                                        c                  d

72. Unless we leave a bowl of water under the sun, it will evaporate.

          A                          b                     c                       d

73. If we continue to use fuels at the current rate, we would soon have to face a fuel crisis.

      A                        b                                                      c                          d

74. If I am 10 centimeters taller, I would play basketball.

             A               b            c                d

75. If the doctors could find in the remedy, a lot of people would be saved.

                A                        b                            c                         d

76. If she bought that house now, she ran out of money.

                   A                         b             c         d

77. What you would do if you could speak French well?

        A             b                         c                              d

78. If I had known he is not at home, I wouldn’t have gone all the way to his house.

                   A                b                                   c                                     d

79. If I had known that the road were flooded, I would never have taken that way.

                  A                                       b                  c                      d

80. If I were you, I will go to the dentist’s and have the tooth checked.

              a                 b                     c                                            d

81. If you hadn’t left the car unlocked, it wouldn’t have be stolen.

                              a.                   b.                 c.                 d

82. What would happen because I pressed that red button?

                    a.                     b.                         c.          d

83. If the weather is fine today, we would go to the beach.

        a.                   b             c.               d.

84. If you will study harder, you will surely pass the coming exams with good results.

                      a.                                       b.                     c.                                       d

85. If the weather weren’t too bad, we would to go swimming.

       a.                         b.                           c.        d

86. If he weren’t too old, he would apply to the job as a war  reporter.

                  a.                            b                   c.            d

87.If drivers obeyed the speed limit, fewer accidents occur.

           a.                                b.             c.                        d

88. If I would have studied Russian at school, I would have understood him easily.

                         a.                                   b.                                         c.               d

89. If tomorrow the weather will be bad, the match will be postponed.

                a.                                b.                     c.                       d.

90. If you will see Mike today, please ask him to phone me.

      a.            b.                                        c.                 d.

Sửa lỗi sai:

1. If we will reduce (A) the speed of population growth (B), there will be less (C)pressure on (D) the earth.

2. Unless (A) we leave a bowl of (B) water under (C) the sun, it will (D) evaporate.

3. If (A) we continue to use (B) fuelt at the current rate, we would (C) soon have to face (D) a fuel crisis,

Choose the underlined part that needs correction.

1. If we will reduce the use of chemical fertilizers, there will be less pressure on the earth.

=>

2. If plants don’t get enough water, they would die.

=>

3. If the doctors could found out the vaccines, a lot of people would be saved.

=>

4. If she bought that mobile phone now, she ran out of money.

=>

5. What you will do if you could speak Spanish well? =>

6. If I were you, I will go to the dental clinic and have the tooth checked.

=>

7. If you leave the car unlocked, it is stolen.

=>

8. What would happen unless he pressed that red button?

  =>

9. If you not answer all of my questions, I can’t do anything to help you.

=>

10. If you will see Mike today, please ask him to phone me.

EX2:

1. If we continue to use fuels at the current rate, we would soon have to face a fuel crisis

2. If I am 10 centimeters taller, I would play basketball

3. If the doctors could find in the remedy, a lot of people would be saved

4. If she bought that house now, she ran out of money

5. What you would do if you could speak French well?

6. If tomorrow the weather will be bad, the match will be postponed

7. If you will see Mike today, please ask him to phone me

8. If I were you, I will go to the dentist's and have the tooth checked

9. If you hadn't left the car unlooked, it would't have be stolen

10. What would happen because I pressed that red button

11. If the weather is fine today, we would go to the beach

12. If you will study harder, you will surely pass the coming exams with good results

13. If the weather weren't too bad, we would to go swimming

14. If we will reduce the speed of population growth, there will be less pressure on the earth

15. Unless we leave a bowl of water under the sun, it will evaporate