Xác định câu mắc lỗi bằng cách chỉ ra chữ cái a, b, c, d tương ứng:
     1. If we will reduce the speed of population growth,
                         a                                                     b
there will be less pressure on the earth.
                         c                      d
     2. Unless we leave a bowl of water under the sun, it
             a                             b                         c
will evaporate.
 d
     3. If we continue to use fuels at the current rate, we
         a                            b
would soon have to face a fuel crisis.
     c                             d
     4. If I am 10 centimeters taller, I would play
                a                  b              c               d
basketball.
     5. If the doctor could find in the remedy, a lot of
                    a                          b                               c
people would be saved.
                     d
     6. If she bought that house now, she ran out of
                       a                               b             c           d
money.

     7. What you would do​ if you could speak French
            a           b                               c
well?
  d
      8. If I had known he is not at home, I wouldn't have 
                       a                     b                                      c
gone all the way to his house.
                               d
 all the way to his house.
                               d
     9. If I had known that the road were flooded, I
                       a                                            b
would never have taken that way.
    c                      d
     10. If I were you, I will go to the dentist's and have
                    a                    b                 c 
the tooth checked.
                        d