You didn't let me drive. If we _____in turn, you _____ so tired.

I didn't see your sister at the meeting. If she _____, she would have met my brother.

_____ it rain tomorrow, we would have to put off the visit to Yangpu Bridge.

-If he _____, he _____ that food. -Luckily, he was sent to the hospital immediately.

If we _____ from history, we are destined to repeat it.

What a pity! If I had caught that flight, I _____ over the Pacific Ocean now.

If it hadn't been for the heroes' contributions and sacrifices, we_____ such a happy life at this right moment.

A lot of studies have proved that you _____ weight when you _____ and eat healthily.

If you had gone to a doctor, you _____ all right now.

Mary hasn't seen her parents in a few weeks. She _____ her parents later this afternoon if she _____ enough time.

I would have answered the phone, but I ___ it ring.

A: I wish I _____ the meeting. B: But you didn't.

When I don't clean my bedroom, my mum always _____ angry.

A: Did you pass the driving test? B: No. How I wish I _____ it.

_____ tomorrow, we would make a snowman.

Ellen is a fantastic dancer. I wish I _____ as well as her.

-The weather has been very hot and dry. -Yes. If it had rained even a drop, things would be much better now! And my vegetables _____.

_____ for the free tickets, I would not have gone to watch the film.

I'm taking my boots when we go to New York next month. If it _____, I _____ my warm boots with me.

I _____ through that bitter period without your generous help.

The bus would not have run into the river _____ for the bad tempered lady.

I wish I _____ that second piece of cake. I had a stomachache all night long.

Flight 242 is experiencing mechanical difficulties. We predict a delay of less than two hours and ask for your patience. If the plane's air conditioning ________ within two hours, all passengers will be reassigned to other flights.

- I can't believe it. Tom failed the test again! - He would not be so upset now if he _____ your advice.