Third Conditional Practice Exercise: Third Conditional MCQ Grammar Test Online

Question 1:  If I ______ the answer I would have told you.

(A) know

(B) knew

(C) had known

(D) knowing

Question 2:  Which of the following sentences is an example of the Third Conditional?

(A) If she studies hard she will pass the exam.

(B) If they were here we would celebrate.

(C) If he had called I would have answered.

(D) If I see you I will speak to you.

Question 3:  If it ______ earlier we could have finished on time.

(A) rained

(B) rains

(C) had rained

(D) is raining

Question 4:  Choose the correct completion: If they ______ more carefully they would have avoided the mistake.

(A) drive

(B) drove

(C) had driven

(D) driving

Question 5:  Which sentence is NOT in the Third Conditional?

(A) If I had known I would have come.

(B) If she had seen the movie she would have liked it.

(C) If they are invited they will come.

(D) If we had gone to the party we would have met her.

Question 6:  If I ______ you I would have taken that job.

(A) am

(B) were

(C) was

(D) had been

Question 7:  Complete the sentence: If she ______ the instructions she would have completed the project.

(A) understands

(B) understood

(C) had understood

(D) understanding

Question 8:  Identify the correct Third Conditional sentence:

(A) If it rains we will stay indoors.

(B) If I had a car I would drive to work.

(C) If he had studied he would have passed the exam.

(D) If they finish early they will call you.

Question 9:  If we ______ the warning we would have left earlier.

(A) hear

(B) heard

(C) had heard

(D) hearing

Question 10:  Which of the following is a correct usage of the Third Conditional?

(A) If I see you I will help you.

(B) If she had known she would have come.

(C) If they invite us we will go.

(D) If he runs faster he will win.