All of us would have enjoyed the party much more if there _____ quite such a crowd of people there.

.If you have really been studying English for so long, it’s about time you _____ able to write letters in English.

If your car _____ any attention during the first 12 months, take it to authorized dealer.

I was to have made a speech if _____.

He left orders that nothing _____ touched until the police arrived there.

I _____ the party much more if there hadn’t been quite such a crowd of people there.

_____, he would not have recovered so quickly.

____ you were busy, I wouldn’t have bothered you with questions.

It was recommended that passengers _____ smoke during the flight.

_____ your timely advice,I would never have known how to go about the work.