Without the ‘ greenhouse effect’, the earth ____ be about thirty-three degrees Celsius cooler than it is.

When it comes to giving his kids the education they deserve, the 51-year-old father knows he never _______ college without financial aid.

He insisted that the doctor         at once.

It is essential that every child _______ the same educational opportunities.

-----Where are the children? Professor Zhang has come and his speech will start soon.
------I wish they         always late.
A. hadn’t been   C. wouldn’t be     D. wouldn’t have been   D. weren’t

If we          a full preparation, the meeting wouldn't have been so successful．

Had I learnt English well, I ____ interview for the job tomorrow.

This computer is of good quality. If it ___________ break down within the first year, we would repair it at our expense.

If it had not been for the help of my English teacher, I _____ such great progress.

I didn’t go to the party, but I do wish I ____there.