If Susan takes a course in French, it will take her two years completing the course.

If Mary had been here now, she would discover the truth about your lies.

He couldn’t buy a new car if he had a better job.

Were I invited, I would come at her wedding.

Had I known her address, I will come to her house.

If we had better soil, our crops wouldn’t grow faster.

If we did not hurry, we will be late.

If I known you were in trouble yesterday, I would have_tielped you.

Water would run downhill if there were not gravity.

If I were you, I will go to the doctor as soon as possible.

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

If Harry had told he was not at home, I would have gone all the way to see him.

What you would do if you could speak Italian well?                                           

if she bought that car now, she ran out of money.

If the doctors could successfully develop to the vaccine, a lot of people would be saved.

If I am 15 centimeters taller, I would play volleyball.

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

If the boy weren’t so young, he can go to school by himself.

Unless there had been a heavy snow, the climbers will not be injured.

Unless you work more carefully, you will be sack because of your carelessness.

Joey spends his money carelessly as if he was a millionaire.

If you send the application form to our school, you would have been offered a scholarship.

            A               B                C                                                 D

If I had realized that you were waving at me, I would stop.

             A                 B                     C                  D

What a pity! Had I been there on time, I would not miss the performance last night.

If we had bought the map, we wouldn’t be lost the other day.

Unless I won a huge prize in lottery, I wouldn’t give off my job.

If Lucy had finished her task, she can go home.

If we had knew when the meeting started, we would have told you.

If Mike has played for our team, we wouldn’t have lost the game.

Unless it did not rain, Ngoc would pay US a visit as soon as possible.

If I had spoken more confident at the presentation, they would have accepted my offer.

If the weather weren’t nice, we would go on a picnic.

Mr. Hiddleston asked me if I had to go now.

She told us to shut the door but not locked it.

She asked me if I want to buy any second-hand shirts.

The teacher asked Due and Nam which book they are reading.

Mrs. Green told Alice to finishing the homework before watching TV.