If we    a table earlier, we couldn’t be standing here in a queue.

Don’t turn off the computer before closing all programs   you could have problems

Since nobody gave him any help, he    have done the research on his own.

The rule demands that everyone ______ quiet in the school library.

––What a journey! We’ve finally arrived!
––_____ an out-of-date train schedule, we would not have missed the train.

— It’s raining heavily and we can’t go climbing today.
— If only the weather _______ fine.

I was really anxious about you. You____ home without a word.

---Why didn’t you reared him of the possible danger?
---But what       otherwise? He never listens to me.

If we had become aware of danger earlier, we _____ to stay in that temporary shelter.

—It has been nation-widely required that every student ______ have daily exercise for one hour.
—Yeah.It is high time that we ______ special attention to physical exercise.