it’s a pity you didn’t come tolast night’s concert. It was really great!— Really If I ________ so busy, I wouldhave gone with you.

global economy, a new drug for cancer, ______it is discovered, will create many economic possibilities around the world.

Time ________. It’s likely that we’ll miss the deadline. —Don’t worry. We have already got through 80% of the job.

When you finish reading the book, you will have _______ better understanding of ______ life.

When _______for Guangzhou? —Next Monday evening