You ________ touch the chemical, or you ________ get burnt.

I ________ work out the problem at first, but after my teacher showed me an example, I ________ get the answer easily.

Jenny doesn’t agree with her father, but she ________ that to his face.

 He had no choice but to go on because it is their agreement that no one ______ quit the plan half way.

–Amazing! You ______come to the party in such a fancy dress.__ Do’t you know it’s a fashion?

-–Mary knows the city quite well.--She______ well have been there before.

 —Mr. Smith, why are you always asking me to do the difficult work?—Because you _______ do such a thing and nobody else is fit for it.

On Sundays ,the retired(退休的）minster_____ come to the farm and work with the farmers.

If you won’t do as I told you, you____ not go to the party.

Thomas _____ a soldier, for he is much too short.

--- He worked out such different questions at a very young age.--- Oh, he ______ a very smart student then.

---I think Helen is at home.---No, she    be at home, for she phoned me from the airport just five minutes ago.

 – How’s your new class teacher?– We ______ ask for a better one. All my classmates love him so much.

—Why did you leave without a word of warning to John?—But what _____ otherwise? He never listens to me.

If you ___ stick to the unrealistic approach, the worse result will be waiting for you not far ahead.

Mr. Baker, a number of students want to see you. _______ they wait here or outside?

He ___________ unwisely, but he was at least trying to do something helpful.

You ______ be hungry already--- you had lunch only two hours ago!

It was fine yesterday so I ______ the trouble to carry my raincoat with me.

 Sorry I’m late. I ____ have turned off the alarm clock and gone back to sleep again.