The policeman _______ that the drunk driver get out of his car.

---Must we leave the classroom now?---No, you _____. You _____ leave after the bell rings.

Mary is ill today. If she _____, she ____ here at school

If the dog hadn’t woken us, we wouldn’t have noticed the fire and it _____ to the house next door.

The scientists recommend that studies ________ to find out what side effects the medicine might cause.

________ the present unemployment continue, the society would face a more troublesome situation.

—Did you pass the driving test?—No.I ________ it，but I had little time practising.

—Shall I help clean the kitchen, Mum?—Thank you.But you ________ it because I can do it myself.

My suggestion is that you ________ much meat.

 —I left my handbag on the train, but luckily someone gave it to a railway official.—How unbelievable to get it back! I mean, someone ________ it.(2011·江苏)

—Pity you missed the lecture on nuclear pollution.—I________it, but I was busy preparing for a job interview.(2011·福建)

 I ________ through that bitter period without your generous help.(2011·陕西)

We ________John's name on the race list yesterday but for his recent injury.(2011·江西)

________， please try your best to solve the problem in time.

  But for the help of my English teacher, I ________ the first prize in the English Writing Competition.

John went to the hospital alone.If he ________ me about it, I would have gone with him.

  The professor requested that all the students ________ the reports at once.

The law required that everyone ________ his car checked at least once a year.

The doctor strongly recommended that he ________ a holiday.

They________have arrived at lunchtime but their flight was delayed.(2011·全国 )